VEX Robotics is a robotics program for elementary through university students and a subset of Innovation First International. The VEX Robotics competitions and programs are managed by the Robotics Education & Competition Foundation (RECF) . In April 2018, VEX Robotics Competition was named the largest robotics competition in the world by Guinness World Records .
196-547: There are four leagues of VEX Robotics competitions designed for different age groups and skill levels: In each of the four leagues, students are given a new challenge annually and must design, build, program, and drive a robot to complete the challenge as best as they can. The robotics teams that consistently display exceptional mastery in all of these areas will eventually progress to the VEX Robotics World Championship. The description and rules for
392-650: A 2020 census population of 1,304,379, it is the ninth-most populous city in the U.S. and the third-most populous city in Texas after Houston and San Antonio . Located in the North Texas region, the city of Dallas is the main core of the largest metropolitan area in the Southern United States and the largest inland metropolitan area in the U.S. that lacks any navigable link to the sea. Dallas and nearby Fort Worth were initially developed as
588-577: A failed war in northern Korea provoked widespread unrest. Under the succeeding Tang and Song dynasties , Chinese economy, technology, and culture entered a golden age. The Tang dynasty retained control of the Western Regions and the Silk Road, which brought traders to as far as Mesopotamia and the Horn of Africa , and made the capital Chang'an a cosmopolitan urban center. However, it
784-405: A Design Academy with a curriculum for teaching skills through participation in a VEX Robotics Competition. In addition, VEX Robotics provides two other programs aiming to introduce these skills at an early age in the classroom: VEX 123, and VEX Go. VEX 123 is a VEX Robotics program aimed to introduce basic turtle-style programming to young students in kindergarten through second grade . It uses
980-401: A climate very suitable for agriculture and the country has been the world's largest producer of rice, wheat, tomatoes, eggplant, grapes, watermelon, spinach, and many other crops. In 2021, 12 percent of global permanent meadows and pastures belonged to China, as well as 8% of global cropland. China is one of 17 megadiverse countries , lying in two of the world's major biogeographic realms :
1176-532: A cultural identity among its populace still remembered in the ethnonym of the modern Han Chinese . The Han expanded the empire's territory considerably , with military campaigns reaching Central Asia, Mongolia , Korea , and Yunnan , and the recovery of Guangdong and northern Vietnam from Nanyue . Han involvement in Central Asia and Sogdia helped establish the land route of the Silk Road , replacing
1372-634: A disputed land border with India and Bhutan . China is additionally involved in maritime disputes with multiple countries over territory in the East and South China Seas , such as the Senkaku Islands and the entirety of South China Sea Islands . The People's Republic of China is a one-party state governed by the Chinese Communist Party (CCP). The CCP is officially guided by socialism with Chinese characteristics , which
1568-730: A far-reaching popular uprising (the May Fourth Movement ). In the late 1920s, the Kuomintang under Chiang Kai-shek was able to reunify the country under its own control with a series of deft military and political maneuverings known collectively as the Northern Expedition . The Kuomintang moved the nation's capital to Nanjing and implemented "political tutelage", an intermediate stage of political development outlined in Sun Yat-sen's Three Principles of
1764-402: A goal on one side of the field, whilst passing it between each of the teamwork partners robots. The goal wall consists of 4 different holes that can be scored into. Each hole contains a 'switch' that is activated when a ball passes through a hole. Each switch can be activated once per match. Once a ball has been scored, it can be picked up by a designated member of the drive team who places it into
1960-411: A goal, the more points. As well as that, if all the blocks in a goal are the same color (size), then the team(s) get a uniform goal bonus. Teams can get blocks from the supply zone, or get blocks located at specific positions on the field. Teams can also get points for knocking the red blocks off the starting pegs. Teams get points for partial-parking (having part of your robot located in the supply zone at
2156-643: A group of French Socialists established La Réunion , a short-lived community, along the Trinity River in what is now West Dallas. With the construction of railroads, Dallas became a business and trading center and was booming by the end of the 19th century. It became an industrial city, attracting workers from Texas , the South, and the Midwest . The Praetorian Building in Dallas of 15 stories, built in 1909,
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#17327935333362352-643: A hanging bar. VEX IQ Challenge Rings-N-Things was the Pilot Program for the VEX IQ Challenge robotics competition program, which launched in April 2012. The game is played on a four-foot by eight-foot field, surrounded by a 3.5-inch tall perimeter. There are four goals and eight rings into which teams can score 36 balls. The field is divided by the ramp. The VEX U level competition is a robotics competition for college and university students that uses
2548-475: A high density of plant species including numerous rare endemics. Tropical and seasonal rainforests , though confined to Yunnan and Hainan , contain a quarter of all the animal and plant species found in China. China has over 10,000 recorded species of fungi . In the early 2000s, China has suffered from environmental deterioration and pollution due to its rapid pace of industrialization. Regulations such as
2744-778: A length of two minutes. On April 25, 2020, VEX Robotics and the REC Foundation announced a new platform of competitions, the VEX AI Competition. The new platforms will use the VEX V5 Construction and Control System, and registration will be available to high school and college teams. The competition is fully autonomous and will use an array of new sensors, including the VEX Game Positioning System (VEX GPS); VEX AI microprocessor; VEX AI Vision Sensor with depth perception; VEX LINK,
2940-426: A loader on the opposite side of the field. the loader randomly chooses a direction for the balls to be sent. 2 balls can be in play at once during the game. In the last 15s of a match, the designated drive team member can load the balls from a specific zone on the board instead of using the loader. VEX IQ Robotics Competition Full Volume is played on a six-foot by eight-foot rectangular field. Two robots compete in
3136-574: A major inland port , due to the convergence of major railroad lines, interstate highways, and the construction of Dallas Fort Worth International Airport , one of the largest and busiest airports in the world. In addition, Dallas Area Rapid Transit (DART) operates rail and bus transit services throughout the city and its surrounding suburbs. Dominant sectors of its diverse economy include defense , financial services , information technology , telecommunications , and transportation . The Dallas–Fort Worth metroplex hosts 23 Fortune 500 companies,
3332-497: A major focus, special economic zones (SEZs) were created. Inefficient state-owned enterprises (SOEs) were restructured and some closed. This marked China's transition away from planned economy. China adopted its current constitution on 4 December 1982. In 1989, there were protests such those in Tiananmen Square , and then throughout the entire nation. Zhao Ziyang was put under house arrest for his sympathies to
3528-404: A permanent navy which was supported by the developed shipbuilding industry along with the sea trade. Between the 10th and 11th century CE, the population of China doubled to around 100 million people, mostly because of the expansion of rice cultivation in central and southern China, and the production of abundant food surpluses. The Song dynasty also saw a revival of Confucianism , in response to
3724-717: A plan the lake's neighboring cities oppose. Dallas has a humid subtropical climate ( Köppen climate classification : Cfa , Trewartha : Cfhk ) characteristic of the Southern Plains of the United States. It also has both continental and tropical characteristics, characterized by a relatively wide annual temperature range for the latitude. Located at the lower end of Tornado Alley , it is prone to extreme weather, tornadoes, and hailstorms. Summers in Dallas are very hot with high humidity, although extended periods of dry weather often occur. July and August are typically
3920-562: A product of the construction of major railroad lines through the area allowing access to cotton , cattle , and later oil in North and East Texas . The construction of the Interstate Highway System reinforced Dallas's prominence as a transportation hub , with four major interstate highways converging in the city and a fifth interstate loop around it. Dallas then developed as a strong industrial and financial center and
4116-497: A robot-delivered bomb, killing Johnson inside Dallas College El Centro Campus . The shooting occurred in an area of hotels, restaurants, businesses, and residential apartments only a few blocks away from Dealey Plaza. Dallas is situated in the Southern United States , in North Texas . It is the county seat of Dallas County and portions of the city extend into neighboring Collin , Denton , Kaufman , and Rockwall counties. Many suburbs surround Dallas; three enclaves are within
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#17327935333364312-492: A robot. The students use a graphical software to program the robot. There are two parts to the contests: Robot Skills, which is a single robot trying to score as many points as possible, and the Teamwork Challenge, where two robots attempt to work together to complete the same task. VEX IQ Robotics Competition Rapid Relay is played on a 6 feet x 8 feet rectangular field configured as seen above. Two robots compete in
4508-607: A signature building in Bank of America Plaza which is lit up in neon but falls outside the top two hundred tallest buildings in the world. Although some of Dallas's architecture dates from the late 19th and early 20th centuries, most of the notable architecture in the city is from the modernist and postmodernist eras. Iconic examples of modernist architecture include Reunion Tower , the John Fitzgerald Kennedy Memorial , I. M. Pei 's Dallas City Hall and
4704-671: A small round robot with a front, wheels, and an audio speaker (the '123 Robot'), which is programmed to drive around a plastic course using either a handheld wireless programming module (the 'Coder') or a mobile device (not included) with Scratch -based programming software. The course is modular and can be built differently to present different programming challenges. VEX provides multiple pre-prepared STEM Labs designed for different classroom settings, such as language arts and mathematics. The VEX 123 STEM Labs are "designed to provoke STEM thinking and spark creative problem-solving ideas." Dallas, Texas Dallas ( / ˈ d æ l ə s / )
4900-630: A total of 312 residents according to 2019's census estimates, down from 606 in 2017. Hispanic or Latino Americans of any race made up 41.2% of the estimated population in 2019. Among the Hispanic or Latino American population in 2019, 34.6% of Dallas was Mexican , 0.4% Puerto Rican , 0.2% Cuban and 6.0% other Hispanic or Latino American. In 2017's American Community Survey estimates among the demographic 35.5% were Mexican, 0.6% Puerto Rican, 0.4% Cuban, and 5.4% other Hispanic or Latino. By 2020, Hispanic or Latino Americans of any race continued to constitute
5096-890: A variety of named districts, including the West End Historic District , the Arts District , the Main Street District , Farmers Market District , the City Center Business District , the Convention Center District , and the Reunion District . This area includes Uptown, Victory Park , Harwood, Oak Lawn, Dallas Design District , Trinity Groves , Turtle Creek , Cityplace , Knox/Henderson , Greenville , and West Village . East Dallas
5292-404: A white mob of hundreds of people lynched a black man, Allen Brooks , accused of raping a little girl. The mob tortured Brooks, then killed him at the downtown intersection of Main and Akard by hanging him from a decorative archway inscribed with the words "Welcome Visitors". Thousands of Dallasites came to gawk at the torture scene, collecting keepsakes and posing for photographs. In 1921,
5488-523: A wireless robot-to-robot communications interface; and the VEX Sensor Fusion Map, a new multi-sensor integration technology which uses sensory data from the robots to render the course in real-time 3D. Each team will build and program two robots. Teams will be able to 3D print and machine parts, use custom electronics, and utilize an unlimited quantity of motors. The pilot program is scheduled to open for registration to university students in
5684-457: Is Marxism adapted to Chinese circumstances . The Chinese constitution states that the PRC "is a socialist state governed by a people's democratic dictatorship that is led by the working class and based on an alliance of workers and peasants," that the state institutions "shall practice the principle of democratic centralism ," and that "the defining feature of socialism with Chinese characteristics
5880-664: Is "China" ( 中国 ; 中國 ; Zhōngguó ), from zhōng ('central') and guó ('state'), a term which developed under the Western Zhou dynasty in reference to its royal demesne . It was used in official documents as an synonym for the state under the Qing . The name Zhongguo is also translated as 'Middle Kingdom' in English. China is sometimes referred to as " mainland China " or "the Mainland" when distinguishing it from
6076-456: Is November 12, and the average date of last frost is March 12. January is typically the coldest month, with an average daytime high of 56.8 °F (14 °C) and an average nighttime low of 37.3 °F (3 °C). The normal daily average temperature in January is 47.0 °F (8 °C) but sharp swings in temperature can occur, as strong cold fronts known as " Blue Northers " pass through
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6272-462: Is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex , the most populous metropolitan area in Texas and the fourth-most populous metropolitan area in the United States at 7.5 million people. It is the most populous city in and seat of Dallas County with portions extending into Collin , Denton , Kaufman , and Rockwall counties. With
6468-513: Is a metal-based robotics platform with machinable, bolt-together pieces that can be used to construct custom robotic mechanisms. The robot is controlled by a programmable processor known as the VEX V5 Brain. The Brain is equipped with a color LCD touchscreen, 21 hardware ports, an SD card port, a battery port, 8 legacy sensor ports, and a micro-USB programming port. Usage with a VEX V5 Radio enables wireless driving and wireless programming of
6664-856: Is bounded by the Bohai , Yellow , East China and South China seas. China connects through the Kazakh border to the Eurasian Steppe . The territory of China lies between latitudes 18° and 54° N , and longitudes 73° and 135° E . The geographical center of China is marked by the Center of the Country Monument at 35°50′40.9″N 103°27′7.5″E / 35.844694°N 103.452083°E / 35.844694; 103.452083 ( Geographical center of China ) . China's landscapes vary significantly across its vast territory. In
6860-585: Is commonly agreed that pre-modern China's population experienced two growth spurts, one during the Northern Song period (960–1127), and other during the Qing period (around 1700–1830). By the High Qing era China was possibly the most commercialized country in the world, and imperial China experienced a second commercial revolution by the end of the 18th century. On the other hand, the centralized autocracy
7056-461: Is home to a variety of forest types. Cold coniferous forests predominate in the north of the country, supporting animal species such as moose and Asian black bear , along with over 120 bird species. The understory of moist conifer forests may contain thickets of bamboo . In higher montane stands of juniper and yew , the bamboo is replaced by rhododendrons . Subtropical forests, which are predominate in central and southern China, support
7252-433: Is home to many areas, neighborhoods, and communities. Dallas can be divided into several geographical areas which include larger geographical sections of territory including many subdivisions or neighborhoods, forming macroneighborhoods. Central Dallas is anchored by Downtown Dallas, the center of the city, along with Oak Lawn and Uptown , areas characterized by dense retail, restaurants, and nightlife. Downtown Dallas has
7448-498: Is played on a four-foot by eight-foot rectangular field. The object of the game is to attain the highest possible alliance score by scoring small and large BuckyBalls into the floor, low and high goals, filling scoring rings, and having robots hang from the hanging bar at the end of the match. There are a total of 36 small BuckyBalls and four large BuckyBalls available as scoring objects in the game. There are four floor goals, two low goals, two high goals, and four scoring rings, as well as
7644-447: Is played on a four-foot by eight-foot rectangular field. The object of the game is to attain the highest score by scoring and stacking colored hubs in building zones, removing bonus hubs from the hanging structure, and by parking or hanging on the hanging bar. There are two building zones in the corners of the field. In the middle, there is one hanging structure. There are a total of fifteen hubs, plus two bonus hubs available to be scored in
7840-451: Is protected by law, and as of 2005 , the country has over 2,349 nature reserves , covering a total area of 149.95 million hectares, 15 percent of China's total land area. Most wild animals have been eliminated from the core agricultural regions of east and central China, but they have fared better in the mountainous south and west. The Baiji was confirmed extinct on 12 December 2006. China has over 32,000 species of vascular plants, and
8036-482: Is surrounded by undeveloped land on all sides. Swampland and wetlands separating it from South Dallas are part of the Great Trinity Forest , a subsection of the city's Trinity River Project , newly appreciated for habitat and flood control . Dallas and its surrounding area are mostly flat. The city lies at elevations ranging from 450 to 550 feet (137 to 168 m) above sea level. The western edge of
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8232-520: Is the second-most populous country after India , representing 17.4% of the world population. China spans the equivalent of five time zones and borders fourteen countries by land . With an area of nearly 9.6 million square kilometers (3,700,000 sq mi), it is the third-largest country by total land area. The country is divided into 33 province-level divisions : 22 provinces , five autonomous regions , four municipalities , and two semi-autonomous special administrative regions . Beijing
8428-530: Is the country's capital, while Shanghai is its most populous city by urban area and largest financial center . China is considered one of the cradles of civilization : the first human inhabitants in the region arrived during the Paleolithic . By the late 2nd millennium BCE, the earliest dynastic states had emerged in the Yellow River basin. The 8th–3rd centuries BCE saw a breakdown in
8624-451: Is the direct ancestor of modern Chinese characters . The Shang were overthrown by the Zhou , who ruled between the 11th and 5th centuries BCE, though the centralized authority of Son of Heaven was slowly eroded by fengjian lords. Some principalities eventually emerged from the weakened Zhou and continually waged war with each other during the 300-year Spring and Autumn period . By
8820-401: Is the leadership of the Chinese Communist Party." The PRC officially terms itself as a democracy , using terms such as "socialist consultative democracy", and " whole-process people's democracy ". However, the country is commonly described as an authoritarian one-party state and a dictatorship , with among the heaviest restrictions worldwide in many areas, most notably against freedom of
9016-423: Is the location of Cedars , and Fair Park , where the annual State Fair of Texas is held from late September through mid-October. Also located here is Exposition Park, Dallas , noted for having artists, art galleries, and bars along tree-lined Exposition Avenue. South Side Dallas is a popular location for nightly entertainment. The neighborhood has undergone extensive development and community integration. What
9212-531: Is the location of Deep Ellum , an arts area close to Downtown, the Lakewood neighborhood (and adjacent areas, including Lakewood Heights , Wilshire Heights , Lower Greenville , Junius Heights , and Hollywood Heights/Santa Monica ), Vickery Place and Bryan Place , and the architecturally significant neighborhoods of Swiss Avenue and Munger Place . Its historic district has one of the largest collections of Frank Lloyd Wright -inspired prairie-style homes in
9408-559: Is the world's leading investor in renewable energy and its commercialization , with $ 546 billion invested in 2022; it is a major manufacturer of renewable energy technologies and invests heavily in local-scale renewable energy projects. Long heavily relying on non-renewable energy sources such as coal, China's adaptation of renewable energy has increased significantly in recent years, with their share increasing from 26.3 percent in 2016 to 31.9 percent in 2022. In 2023, 60.5% of China's electricity came from coal (largest producer in
9604-702: The Encyclopædia Britannica , to 9,596,961 km (3,705,407 sq mi) according to the UN Demographic Yearbook , and The World Factbook . China has the longest combined land border in the world , measuring 22,117 km (13,743 mi) and its coastline covers approximately 14,500 km (9,000 mi) from the mouth of the Yalu River (Amnok River) to the Gulf of Tonkin . China borders 14 nations and covers
9800-456: The 18th CCP National Congress in 2012. Shortly after his ascension to power, Xi launched a vast anti-corruption crackdown , that prosecuted more than 2 million officials by 2022. During his tenure , Xi has consolidated power unseen since the initiation of economic and political reforms. China's landscape is vast and diverse, ranging from the Gobi and Taklamakan Deserts in the arid north to
9996-474: The COVID-19 pandemic . On March 30, 2020, VEX Robotics and the REC Foundation announced they would host the first-ever VEX Robotics Virtual World Celebration on April 25, 2020. The event celebrated the accomplishments of all teams and revealed the 2020–21 VEX Robotics Competition and VEX IQ Challenge. During this event, VEX Robotics and the REC Foundation also hosted a Fantasy Robotics simulation for all levels in
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#173279353333610192-778: The Cultural Revolution , sparking a decade of political recrimination and social upheaval that lasted until Mao's death in 1976. In October 1971, the PRC replaced the ROC in the United Nations, and took its seat as a permanent member of the Security Council. After Mao's death, the Gang of Four was arrested by Hua Guofeng and held responsible for the Cultural Revolution. The Cultural Revolution
10388-636: The Kuomintang and the Communists led to the resumption of civil war. Constitutional rule was established in 1947, but because of the ongoing unrest, many provisions of the ROC constitution were never implemented in mainland China. Afterwards, the CCP took control of most of mainland China, and the ROC government retreated offshore to Taiwan . On 1 October 1949, CCP Chairman Mao Zedong formally proclaimed
10584-651: The Morton H. Meyerson Symphony Center . Good examples of postmodernist skyscrapers are Fountain Place , Bank of America Plaza , Renaissance Tower , JPMorgan Chase Tower , and Comerica Bank Tower . Downtown Dallas also has residential offerings in downtown, some of which are signature skyline buildings. Several smaller structures are fashioned in the Gothic Revival style, such as the Kirby Building , and
10780-568: The Northern Chinese Famine of 1876–1879 , in which between 9 and 13 million people died. The Guangxu Emperor drafted a reform plan in 1898 to establish a modern constitutional monarchy , but these plans were thwarted by the Empress Dowager Cixi . The ill-fated anti-foreign Boxer Rebellion of 1899–1901 further weakened the dynasty. Although Cixi sponsored a program of reforms known as the late Qing reforms ,
10976-620: The Palearctic and the Indomalayan . By one measure, China has over 34,687 species of animals and vascular plants, making it the third-most biodiverse country in the world, after Brazil and Colombia . The country is a party to the Convention on Biological Diversity ; its National Biodiversity Strategy and Action Plan was received by the convention in 2010. China is home to at least 551 species of mammals (the third-highest in
11172-744: The RCEP . It is a member of the BRICS , the G20 , APEC , the SCO , and the East Asia Summit . Making up around one-fifth of the world economy, the Chinese economy is the world's largest economy by PPP-adjusted GDP , the second-largest economy by nominal GDP , and the second-wealthiest country , albeit ranking poorly in measures of democracy , human rights and religious freedom . The country has been one of
11368-573: The Republic of China (ROC) was established the following year. The country under the nascent Beiyang government was unstable and ultimately fragmented during the Warlord Era , which was ended upon the Northern Expedition conducted by the Kuomintang (KMT) to reunify the country. The Chinese Civil War began in 1927, when KMT forces purged members of the rival Chinese Communist Party (CCP), who proceeded to engage in sporadic fighting against
11564-729: The Republic of China or the PRC's Special Administrative Regions . Archaeological evidence suggests that early hominids inhabited China 2.25 million years ago. The hominid fossils of Peking Man , a Homo erectus who used fire , have been dated to between 680,000 and 780,000 years ago . The fossilized teeth of Homo sapiens (dated to 125,000–80,000 years ago) have been discovered in Fuyan Cave . Chinese proto-writing existed in Jiahu around 6600 BCE, at Damaidi around 6000 BCE, Dadiwan from 5800 to 5400 BCE, and Banpo dating from
11760-416: The Robotics Education & Competition Foundation , provides elementary and middle school students with exciting, open-ended robotics and research project challenges that enhance their science, technology, engineering, and mathematics (STEM) skills through hands-on, student-centered learning. A VEX IQ Robotics set is used, with plastic pieces that snap together using pegs, and it is extremely easy to construct
11956-412: The Silk Road , and the building of the Great Wall , Chinese culture flourished and has heavily influenced both its neighbors and lands further afield. However, China began to cede parts of the country in the late 19th century to various European powers by a series of unequal treaties . After decades of Qing China on the decline, the 1911 Revolution overthrew the Qing dynasty and the monarchy and
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#173279353333612152-414: The State Council , China's cabinet, composed of four vice premiers, state councilors , and the heads of ministries and commissions. The Chinese People's Political Consultative Conference (CPPCC) is a political advisory body that is critical in China's " united front " system, which aims to gather non-CCP voices to support the CCP. Similar to the people's congresses, CPPCC's exist at various division, with
12348-421: The Tiananmen Square protests and massacre in 1989. China is a unitary one-party socialist republic led by the CCP. It is one of the five permanent members of the UN Security Council ; the UN representative for China was changed from the ROC to the PRC in 1971. It is a founding member of several multilateral and regional organizations such as the AIIB , the Silk Road Fund , the New Development Bank , and
12544-438: The Turpan Depression . China's climate is mainly dominated by dry seasons and wet monsoons , which lead to pronounced temperature differences between winter and summer. In the winter, northern winds coming from high-latitude areas are cold and dry; in summer, southern winds from coastal areas at lower latitudes are warm and moist. A major environmental issue in China is the continued expansion of its deserts , particularly
12740-481: The World Trade Organization in 2001. At the 16th CCP National Congress in 2002, Hu Jintao succeeded Jiang as the general secretary. Under Hu, China maintained its high rate of economic growth, overtaking the United Kingdom, France, Germany and Japan to become the world's second-largest economy. However, the growth also severely impacted the country's resources and environment, and caused major social displacement. Xi Jinping succeeded Hu as paramount leader at
12936-433: The Xi , Mekong , Brahmaputra and Amur . To the west sit major mountain ranges, most notably the Himalayas. High plateaus feature among the more arid landscapes of the north, such as the Taklamakan and the Gobi Desert. The world's highest point, Mount Everest (8,848 m), lies on the Sino-Nepalese border. The country's lowest point, and the world's third-lowest, is the dried lake bed of Ayding Lake (−154 m) in
13132-426: The Xinhai Revolution of 1911–1912 ended the Qing dynasty and established the Republic of China . Puyi , the last Emperor, abdicated in 1912 . On 1 January 1912, the Republic of China was established, and Sun Yat-sen of the Kuomintang (KMT) was proclaimed provisional president. In March 1912, the presidency was given to Yuan Shikai , a former Qing general who in 1915 proclaimed himself Emperor of China . In
13328-422: The campaigns against Western Xia by Genghis Khan , who also invaded Jin territories . In 1271, the Mongol leader Kublai Khan established the Yuan dynasty , which conquered the last remnant of the Song dynasty in 1279. Before the Mongol invasion, the population of Song China was 120 million citizens; this was reduced to 60 million by the time of the census in 1300. A peasant named Zhu Yuanzhang overthrew
13524-438: The fastest-growing major economies and is the world's largest manufacturer and exporter , as well as the second-largest importer . China is a nuclear-weapon state with the world's largest standing army by military personnel and the second-largest defense budget . It is a great power , and has been described as an emerging superpower . China is known for its cuisine and culture, and has 59 UNESCO World Heritage Sites ,
13720-399: The neoclassical style, as seen in the Davis and Wilson Buildings. One architectural "hotbed" in the city is a stretch of historic houses along Swiss Avenue , which has all shades and variants of architecture from Victorian to neoclassical. The Dallas Downtown Historic District protects a cross-section of Dallas commercial architecture from the 1880s to the 1940s. The city of Dallas
13916-399: The second-highest number of any country . The word "China" has been used in English since the 16th century; however, it was not used by the Chinese themselves during this period. Its origin has been traced through Portuguese , Malay , and Persian back to the Sanskrit word Cīna , used in ancient India . "China" appears in Richard Eden 's 1555 translation of the 1516 journal of
14112-475: The southern portion of the city is predominantly black. The west and east sides of the city are predominantly Hispanic or Latino American; Garland also has a large Spanish-speaking population. North Dallas has many enclaves of predominantly white, black and especially Hispanic or Latino American residents. The Dallas area is also a major living destination for Black and African Americans primarily due to its strong and diverse economy. Between 2010 and 2020,
14308-548: The subtropical forests in the wetter south. The Himalaya , Karakoram , Pamir and Tian Shan mountain ranges separate China from much of South and Central Asia . The Yangtze and Yellow Rivers, the third- and sixth-longest in the world, respectively, run from the Tibetan Plateau to the densely populated eastern seaboard. China's coastline along the Pacific Ocean is 14,500 km (9,000 mi) long and
14504-440: The 1979 Environmental Protection Law are fairly stringent, though they are poorly enforced, frequently disregarded in favor of rapid economic development. China has the second-highest death toll because of air pollution, after India , with approximately 1 million deaths. Although China ranks as the highest CO 2 emitting country, it only emits 8 tons of CO 2 per capita , significantly lower than developed countries such as
14700-600: The 2010s. In 2020, the Chinese government announced its aims for the country to reach its peak emissions levels before 2030, and achieve carbon neutrality by 2060 in line with the Paris Agreement , which, according to Climate Action Tracker , would lower the expected rise in global temperature by 0.2–0.3 degrees – "the biggest single reduction ever estimated by the Climate Action Tracker". China
14896-451: The 2016 VEX Robotics World Championship aired on ESPN2 in June 2016. CBS aired a one-hour special version of the 2017 VEX Robotics World Championship on June 11. During the VEX Robotics World Championship, a "Parade of Nations" is held and includes hundreds of students, often dressed in costumes, from more than thirty countries. The 2020 VEX Robotics World Championship was canceled due to
15092-414: The 2020 American Community Survey , the median income for a household in the city was $ 54,747; families had a median household income of $ 60,895; married-couple families $ 81,761; and non-families $ 45,658. In 2003–2007's survey, male full-time workers had a median income of $ 32,265 versus $ 32,402 for female full-time workers. The per capita income for the city was $ 25,904. About 18.7% of families and 21.7% of
15288-453: The 5th millennium BCE. Some scholars have suggested that the Jiahu symbols (7th millennium BCE) constituted the earliest Chinese writing system. According to traditional Chinese historiography , the Xia dynasty was established during the late 3rd millennium BCE, marking the beginning of the dynastic cycle that was understood to underpin China's entire political history. In the modern era,
15484-573: The Austin Chalk Formation, a limestone escarpment (also known as the "White Rock Escarpment"), rises 230 feet (70 m) and runs roughly north–south through Dallas County. South of the Trinity River , the uplift is particularly noticeable in the neighborhoods of Oak Cliff and the adjacent cities of Cockrell Hill, Cedar Hill , Grand Prairie , and Irving . Marked variations in terrain are also found in cities immediately to
15680-668: The British under the 1842 Treaty of Nanking , the first of what have been termed as the " unequal treaties ". The First Sino-Japanese War (1894–1895) resulted in Qing China's loss of influence in the Korean Peninsula , as well as the cession of Taiwan to Japan . The Qing dynasty also began experiencing internal unrest in which tens of millions of people died, especially in the White Lotus Rebellion ,
15876-449: The CCP. The NPC is dominated by the CCP, with another eight minor parties having nominal representation under the condition of upholding CCP leadership. The president is elected by the NPC. The presidency is the ceremonial state representative, but not the constitutional head of state. The incumbent president is Xi Jinping, who is also the general secretary of the CCP and the chairman of
16072-638: The Central Military Commission , making him China's paramount leader and supreme commander of the Armed Forces. The premier is the head of government , with Li Qiang being the incumbent. The premier is officially nominated by the president and then elected by the NPC, and has generally been either the second- or third-ranking member of the Politburo Standing Committee (PSC). The premier presides over
16268-653: The Dallas area had the second-most new Black and African American residents only behind the Atlanta area and slightly above the Houston area. The notable influx of African Americans is partly due to the New Great Migration . There is a significant number of people from the Horn of Africa , immigrants from Ethiopia , Eritrea and Somalia . The Dallas–Fort-Worth metroplex had an estimated 70,000 Russian-speakers (as of November 6, 2012) mostly immigrants from
16464-521: The Dallas region, forcing temperatures below the 40 °F (4 °C) mark for several days at a time and often between days with high temperatures above 80 °F (27 °C). Snow accumulation is seen in the city in about 70% of winter seasons, and snowfall generally occurs 1–2 days out of the year for a seasonal average of 1.5 inches (4 cm). Some areas in the region, however, receive more than that, while other areas receive negligible snowfall or none at all. The all-time record low temperature within
16660-510: The Gobi Desert. Although barrier tree lines planted since the 1970s have reduced the frequency of sandstorms , prolonged drought and poor agricultural practices have resulted in dust storms plaguing northern China each spring, which then spread to other parts of East Asia, including Japan and Korea. Water quality, erosion , and pollution control have become important issues in China's relations with other countries. Melting glaciers in
16856-774: The Himalayas could potentially lead to water shortages for hundreds of millions of people. According to academics, in order to limit climate change in China to 1.5 °C (2.7 °F) electricity generation from coal in China without carbon capture must be phased out by 2045. With current policies, the GHG emissions of China will probably peak in 2025, and by 2030 they will return to 2022 levels. However, such pathway still leads to three-degree temperature rise. Official government statistics about Chinese agricultural productivity are considered unreliable, due to exaggeration of production at subsidiary government levels. Much of China has
17052-716: The KMT-led Nationalist government . Following the country's invasion by the Empire of Japan in 1937, the CCP and KMT formed the Second United Front to fight the Japanese. The Second Sino-Japanese War eventually ended in a Chinese victory; however, the CCP and the KMT resumed their civil war as soon as the war ended. In 1949, the resurgent Communists established control over most of the country, proclaiming
17248-705: The Kuomintang and the CCP. Japanese forces committed numerous war atrocities against the civilian population; as many as 20 million Chinese civilians died. An estimated 40,000 to 300,000 Chinese were massacred in Nanjing alone during the Japanese occupation. China, along with the UK, the United States, and the Soviet Union , were recognized as the Allied " Big Four " in the Declaration by United Nations . Along with
17444-580: The Metro Dallas Homeless Alliance Continuum of Care 2022 Homeless Count & Survey Independent Analysis, "approximately 1 of 3 (31%) those experiencing homelessness were found on the streets or in other places not meant for human habitation." The region surrounding Dallas is a habitat for mosquitoes, creating a pest problem for humans. Dallas and the surrounding area is sprayed regularly to control mosquito-borne diseases such as West Nile virus . Dallas's population
17640-706: The Mexican Revolution. Despite the onset of the Great Depression , business in construction was flourishing in 1930. That year, Columbus Marion "Dad" Joiner struck oil 100 miles (160 km) east of Dallas in Kilgore , spawning the East Texas oil boom . Dallas quickly became the financial center for the oil industry in Texas and Oklahoma . During World War II , Dallas was a major manufacturing center for military automobiles and aircraft for
17836-659: The Mexican president Álvaro Obregón along with the former revolutionary general visited Downtown Dallas's Mexican Park in Little Mexico ; the small park was on the corner of Akard and Caruth Street, site of the current Fairmont Hotel. The small neighborhood of Little Mexico was home to a Latin American population that had been drawn to Dallas by factors including the American Dream , better living conditions, and
18032-537: The North collide with warm, humid air streaming in from the Gulf Coast , leading to severe thunderstorms with lightning , torrents of rain, hail , and occasionally, tornadoes . Over time, tornadoes have probably been the most significant natural threat to the city, as it is near the heart of Tornado Alley . A few times each winter in Dallas, warm and humid air from the south will override cold, dry air, resulting in freezing rain or ice and causing disruptions in
18228-648: The PRC initially allied closely with the Soviet Union , the relations between the two communist nations gradually deteriorated , leading China to develop an independent industrial system and its own nuclear weapons . The Chinese population increased from 550 million in 1950 to 900 million in 1974. However, the Great Leap Forward , an idealistic massive industrialization project, resulted in an estimated 15 to 55 million deaths between 1959 and 1961, mostly from starvation. In 1964, China detonated its first atomic bomb. In 1966, Mao and his allies launched
18424-1002: The People program for transforming China into a modern democratic state. The Kuomintang briefly allied with the Chinese Communist Party (CCP) during the Northern Expedition, though the alliance broke down in 1927 after Chiang violently suppressed the CCP and other leftists in Shanghai, marking the beginning of the Chinese Civil War . The CCP declared areas of the country as the Chinese Soviet Republic (Jiangxi Soviet) in November 1931 in Ruijin , Jiangxi . The Jiangxi Soviet
18620-586: The People's Republic of China and forcing the Nationalist government to retreat to the island of Taiwan . The country was split, with both sides claiming to be the sole legitimate government of China . Following the implementation of land reforms , further attempts by the PRC to realize communism failed: the Great Leap Forward was largely responsible for the Great Chinese Famine that ended with millions of Chinese people having died, and
18816-535: The People's Republic of China in Tiananmen Square , Beijing . In 1950, the PRC captured Hainan from the ROC and annexed Tibet . However, remaining Kuomintang forces continued to wage an insurgency in western China throughout the 1950s. The CCP consolidated its popularity among the peasants through the Land Reform Movement , which included the state-tolerated executions of between 1 and 2 million landlords by peasants and former tenants. Though
19012-573: The Portuguese explorer Duarte Barbosa . Barbosa's usage was derived from Persian Chīn ( چین ), which in turn derived from Sanskrit Cīna ( चीन ). Cīna was first used in early Hindu scripture, including the Mahabharata (5th century BCE) and the Laws of Manu (2nd century BCE). In 1655, Martino Martini suggested that the word China is derived ultimately from
19208-487: The Teamwork Challenge as an alliance in 60-second-long teamwork matches, working collaboratively to score points. Teams also compete in Skills Challenges, where one team tries to score as many points as possible. These matches consist of Driving Skills, where the robots is operated entirely by humans, and Programming Skills, where the robot acts autonomously. The object of the game is to score plush balls into
19404-463: The Teamwork Challenge as an alliance in 60-second-long teamwork matches, working together to score points. Teams also compete in Skills Challenges, where one team tries to score as many points as possible. These matches consist of Driving Skills, where the robots is operated entirely by humans, and Programming Skills, where the robot acts autonomously. The object of the game is to score different sized blocks into one of three goals. The more blocks in
19600-442: The Trinity River southeast of Downtown Dallas. Trails along White Rock Creek are part of the extensive Dallas County Trails System. Bachman Lake , just northwest of Love Field Airport , is a smaller lake also popularly used for recreation. Northeast of the city is Lake Ray Hubbard , a vast 22,745-acre (92 km ) reservoir in an extension of Dallas surrounded by the suburbs of Garland , Rowlett , Rockwall , and Sunnyvale . To
19796-488: The United States (16.1), Australia (16.8) and South Korea (13.6). Greenhouse gas emissions by China are the world's largest . The country has significant water pollution problems; only 89.4% of China's national surface water was graded suitable for human consumption by the Ministry of Ecology and Environment in 2023. China has prioritized clamping down on pollution, bringing a significant decrease in air pollution in
19992-735: The United States and Allied forces. Over 94,000 jeeps and over 6,000 military trucks were produced at the Ford plant in East Dallas. North American Aviation manufactured over 18,000 aircraft at their plant in Dallas, including the T-6 Texan trainer, P-51 Mustang fighter, and B-24 Liberator bomber. On November 22, 1963, United States President John F. Kennedy was assassinated on Elm Street while his motorcade passed through Dealey Plaza in Downtown Dallas. The upper two floors of
20188-596: The United States, Plano , the northern suburb of Dallas, has the 6th largest Chinese American population as of 2016. The Plano-Richardson area in particular had an estimated 30,000 Iranian Americans in 2012. With so many immigrant groups, there are often multilingual signs in the linguistic landscape . According to U.S. Census Bureau data released in December 2013, 23 percent of Dallas County residents were foreign-born, while 16 percent of Tarrant County residents were foreign-born. The 2018 census estimates determined that
20384-507: The United States. In the northeast quadrant of the city is Lake Highlands , one of Dallas's most unified middle-class neighborhoods. Southwest of Downtown lies Oak Cliff . Once a separate city founded in the mid-1800s, Oak Cliff was annexed in 1903 by Dallas. As one of the oldest areas in Dallas, the hilly North Oak Cliff is home to 5 of the 13 conservation districts in Dallas including the architecturally significant Kessler Park neighborhood and trendy Bishop Arts District . South Dallas
20580-501: The VEX Robotics Competition, has some distinct rules. The autonomous period of VEX U competitions is also longer, lasting forty-five seconds versus the fifteen for the VEX Robotics Competition. As a result, the driver control period is shortened to a period of seventy-five seconds immediately after the autonomous period has been scored, and the autonomous bonus has been awarded to the correct alliance to keep matches at
20776-714: The VEX Robotics Program, using statistics from state and qualifying tournaments. On January 20, 2021, the REC Foundation along with VEX Robotics announced that due to the COVID-19 pandemic the 2021 VEX World Championships would be modified to an online fully remote tournament and would also include remote skills matches. VEX Robotics competitions have been of interest to educators as a way of stimulating students' interest in hands-on learning, engineering, and computer programming. The Department of Engineering and Technology Education at Utah State University has created
20972-534: The VEX Robotics hardware and V5 electronics. The rules are nearly identical for this competition as for the VEX Robotics Competition, but VEX U teams are allowed to take advantage of more customization and greater flexibility than other levels (teams are granted the ability to use 3D printers and use raw materials such as sheet metal and wood). This allows VEX U teams to have more customization on their robots and construct mechanisms that cannot be created solely via
21168-535: The VEX Robotics hardware. Also, their robot creation is limited by the need to find effective costs and a restricted development environment in order to model a real-world situation. Additionally, rather than being limited to a robot size of an 18-inch cube, VEX U contestants had the freedom to use up to a 24-inch cube of space for their larger robot and up to a 15-inch cube for their smaller robot (thus, each team builds 2 robots, and competes against another team's two robots). The VEX U competition, although very similar to
21364-541: The VEX V5 Brain. The block-style interface makes programming simple for elementary through high-school students. VEXcode is consistent across VEX 123, GO, IQ, and V5 and can be used to program the devices from each. VEXcode allows the block programs to be viewed as equivalent C++ or programs to help more advanced students transition from blocks to text. This also allows easy interconversion between text-based and block-based programming. VEXcode also lets students code in C++, which gives
21560-503: The VEX V5 Construction and Control System. In this competition, teams design, build, and program robots to compete at tournaments. At tournaments, teams participate in qualifying matches where two randomly chosen alliances of two teams each compete for the highest team ranking. Before the Elimination Rounds, the top-ranking teams choose their permanent alliance partners, starting with the highest-ranked team, and continuing until
21756-679: The VRC Competition. The VEX Robotics World Championship brings together qualifying teams from the two VEX Robotics programs: the VEX IQ Challenge, VEX Robotics Competition, with the VEX AI Competition bringing the number to three in 2022. The championship is an international celebration of the robotics community and a final tournament to crown the VEX World Champions in each league. The 2021–24 championships are scheduled to be held in Dallas, Texas . A one-hour special version of
21952-496: The Xia is the earliest for which there are both contemporary written records and undisputed archaeological evidence. The Shang ruled much of the Yellow River valley until the 11th century BCE, with the earliest hard evidence dated c. 1300 BCE . The oracle bone script , attested from c. 1250 BCE but generally assumed to be considerably older, represents the oldest known form of written Chinese , and
22148-513: The Xia's historicity came under increasing scrutiny, in part due to the earliest known attestation of the Xia being written millennia after the date given for their collapse. In 1958, archaeologists discovered sites belonging to the Erlitou culture that existed during the early Bronze Age ; they have since been characterized as the remains of the historical Xia, but this conception is often rejected. The Shang dynasty that traditionally succeeded
22344-681: The Yuan in 1368 and founded the Ming dynasty as the Hongwu Emperor . Under the Ming dynasty, China enjoyed another golden age, developing one of the strongest navies in the world and a rich and prosperous economy amid a flourishing of art and culture. It was during this period that admiral Zheng He led the Ming treasure voyages throughout the Indian Ocean, reaching as far as East Africa. In
22540-453: The age of 18 living with them. Approximately 36.2% of households were headed by married couples living together, 57.2% had a single householder male or female with no spouse present, and 35.6% were classified as non-family households with the householder living alone. In 2010, 33.7% of all households had one or more people under 18 years of age, and 17.6% had one or more people who were 65 years of age or older. The average household size in 2020
22736-419: The air pollution in Dallas and the surrounding area comes from a hazardous materials incineration plant in the small town of Midlothian and from cement plants in neighboring Ellis County . The average daily low in Dallas is 57.4 °F (14 °C), and the average daily high is 76.9 °F (25 °C). Dallas receives approximately 39.1 inches (993 mm) of rain per year. The record snowfall for Dallas
22932-1198: The alliance capacity for the tournament is reached. The new alliances then compete in an elimination bracket, and the tournament champions, alongside other award winners, qualify for their regional culminating event. . The current challenge is VEX V5 Robotics Competition: High Stakes. Middle and high school students have the same game and rules. The most general and basic rules for the VEX V5 Robotics Competition are as follows, but each year may have exceptions and/or additional constraints. Previous VEX Robotics Competition games have included, from 2024 to 2025 backwards, High Stakes, Over Under, Spin Up, Tipping Point, Change Up, Tower Takeover, Turning Point, In The Zone, Starstruck, Nothing But Net, Skyrise, Toss Up, Sack Attack, Gateway, Round Up, Clean Sweep, Elevation, and Bridge Battle. World Champions: [REDACTED] 82366G: "ALCTRON VEX CLUB" [REDACTED] 80066B: "Burning Brain" Excellence Award: [REDACTED] 10698D: "Red Lightning D" 2024 VIQRC ES Worlds: The VEX IQ Robotics Competition, presented by
23128-407: The area was considered part of the Mexican state of Coahuila y Tejas . In 1836, Texians , with a majority of Anglo-American settlers, gained independence from Mexico and formed the Republic of Texas . Three years after Texas achieved independence, John Neely Bryan surveyed the area around present-day Dallas. In 1839, accompanied by his dog and a Cherokee he called Ned, he planted a stake in
23324-571: The area, most notably the annual Alan Ross Texas Freedom (Pride) Parade and Festival in June which draws approximately 50,000. For decades, the Oak Lawn and Bishop Arts districts have been known as the epicenters of LGBT culture in Dallas. China China , officially the People's Republic of China ( PRC ), is a country in East Asia . With a population exceeding 1.4 billion, it
23520-451: The authority of the Zhou dynasty , accompanied by the emergence of administrative and military techniques, literature , philosophy , and historiography . In 221 BCE, China was unified under an emperor , ushering in more than two millennia of imperial dynasties including the Qin , Han , Tang , Yuan , Ming , and Qing . With the invention of gunpowder and paper , the establishment of
23716-504: The brain via the VEX V5 Controller. The controller allows wireless user input to the robot brain, and two controllers can be daisy-chained if necessary. Each controller has two hardware ports, a micro-USB port, two 2-axis joysticks, a monochrome LCD display, and twelve buttons. The controller's LCD can be written wirelessly from the robot, providing users with configurable feedback from the robot brain. The VEX V5 Motors connect to
23912-485: The brain via the hardware ports and are equipped with an internal optical shaft encoder to provide feedback on the rotational status of the motor. The motor's speed is programmable but may also be altered by exchanging the internal gear cartridge with one of three cartridges of different gear ratios. The three cartridges are 100 rpm, 200 rpm, and 600 rpm. VEXcode V5 is a Scratch -based coding environment designed by VEX Robotics for programming VEX Robotics hardware, such as
24108-556: The building from which the Warren Commission reported assassin Lee Harvey Oswald shot Kennedy have been converted into a historical museum covering the former president's life and accomplishments. Kennedy was pronounced dead at Dallas Parkland Memorial Hospital just over 30 minutes after the shooting. On July 7, 2016, multiple shots were fired at a Black Lives Matter protest in Downtown Dallas , held against
24304-416: The building zones and one parking zone in the middle of the field. VEX IQ Challenge Ringmaster is played on a four-foot by eight-foot rectangular field. The object of the game is to attain the highest score by scoring colored rings on the floor goal and on posts, by having uniform posts, by emptying starting pegs, and by releasing the bonus tray. There are a total of 28 hexballs available as scoring objects in
24500-820: The bulk of East Asia, bordering Vietnam , Laos , and Myanmar in Southeast Asia; India , Bhutan , Nepal , Pakistan and Afghanistan in South Asia; Tajikistan , Kyrgyzstan and Kazakhstan in Central Asia; and Russia, Mongolia , and North Korea in Inner Asia and Northeast Asia . It is narrowly separated from Bangladesh and Thailand to the southwest and south, and has several maritime neighbors such as Japan , Philippines , Malaysia , and Indonesia . China has resolved its land borders with 12 out of 14 neighboring countries, having pursued substantial compromises in most of them. China currently has
24696-724: The city boundaries— Cockrell Hill , Highland Park , and University Park . According to the United States Census Bureau , the city has a total area of 385.8 square miles (999.3 km ); 340.5 square miles (881.9 km ) of Dallas is land and 45.3 square miles (117.4 km ) of it (11.75%) is water. Dallas makes up one-fifth of the much larger urbanized area known as the Dallas–Fort Worth metroplex , in which one quarter of all Texans live. Dallas's skyline has twenty buildings classified as skyscrapers , over 490 feet (150 m) in height. Despite its tallest building not reaching 980 feet (300 m), Dallas does have
24892-691: The city if the roads and highways become slick. Temperatures reaching 70 °F (21 °C) on average occur on at least four days each winter month. Dallas averages 26 annual nights at or below freezing, with the winter of 1999–2000 holding the record for the fewest freezing nights with 14. During this same span of 15 years, the temperature in the region has only twice dropped below 15 °F (−9 °C), though it will generally fall below 20 °F (−7 °C) in most (67%) years. The U.S. Department of Agriculture places Dallas in Plant Hardiness Zone 8b . However, mild winter temperatures in
25088-608: The city is −10 °F (−23 °C), set on February 12, 1899 during the Great Blizzard of 1899 . The temperature at nearby Dallas/Fort Worth International Airport reached −2 °F (−19 °C) on February 16, 2021, during the February 2021 North American winter storm . Spring and autumn are transitional seasons with moderate and pleasant weather. Vibrant wildflowers (such as the bluebonnet , Indian paintbrush and other flora ) bloom in spring and are planted around
25284-417: The city of Dallas had 1,304,379 residents, an increase of 106,563 since the 2010 United States census . However, as of July 1, 2022, the U.S. Census Bureau estimates that Dallas in first years since the 2020 census lost 4,835 people, leaving the city with a population of 1,299,544. There were 524,498 households at the 2020 estimates, up from 2010's 458,057 households, out of which 137,523 had children under
25480-500: The city of Dallas's foreign-born population consisted of 25.4% naturalized citizens and 74.6% non-citizens. Recognized for having one of the largest lesbian, gay, bisexual, and transgender (LGBT) populations in the nation, Dallas and the Metroplex are widely noted for being home to a vibrant and diverse LGBT community . Throughout the year there are many well-established but quite small compared to other cities LGBT events held in
25676-762: The city's history: those of France, Spain, and Mexico, the flag of the Republic of Texas, the Confederate flag, and the flag of the United States of America. In 1819, the Adams–Onís Treaty between the United States and Spain defined the Red River as the northern boundary of New Spain, officially placing the future location of Dallas well within Spanish territory. The area remained under Spanish rule until 1821, when Mexico declared independence from Spain , and
25872-432: The city. Interstate 35E parallels its path through Dallas along the Stemmons Corridor , then south alongside the western portion of Downtown and past South Dallas and Pleasant Grove, where the river is paralleled by Interstate 45 until it exits the city and heads southeast towards Houston . The river is flanked on both sides by 50 feet (15 m) tall earthen levees to protect the city from frequent floods. Since it
26068-456: The earlier path over the Himalayas to India. Han China gradually became the largest economy of the ancient world. Despite the Han's initial decentralization and the official abandonment of the Qin philosophy of Legalism in favor of Confucianism , Qin's legalist institutions and policies continued to be employed by the Han government and its successors. After the end of the Han dynasty , a period of strife known as Three Kingdoms followed, at
26264-537: The early Ming dynasty, China's capital was moved from Nanjing to Beijing. With the budding of capitalism, philosophers such as Wang Yangming critiqued and expanded Neo-Confucianism with concepts of individualism and equality of four occupations . The scholar-official stratum became a supporting force of industry and commerce in the tax boycott movements, which, together with the famines and defense against Japanese invasions of Korea (1592–1598) and Later Jin incursions led to an exhausted treasury. In 1644, Beijing
26460-425: The east, along the shores of the Yellow Sea and the East China Sea, there are extensive and densely populated alluvial plains , while on the edges of the Inner Mongolian plateau in the north, broad grasslands predominate. Southern China is dominated by hills and low mountain ranges, while the central-east hosts the deltas of China's two major rivers, the Yellow River and the Yangtze River. Other major rivers include
26656-430: The end of the 60 seconds), or full parking (having all of your robot located inside the supply zone at the end of the 60 seconds). VEX IQ Competition Slapshot is played on a six-foot by eight-foot rectangular field. Two robots compete in the Teamwork Challenge as an alliance in 60-second-long teamwork matches, working collaboratively to score points. Teams also compete in the Robot Skills Challenge, where one robot takes
26852-591: The end of the Match. VEX IQ Challenge Pitching In is played on a six-foot by eight-foot rectangular field. Two robots compete in the teamwork challenge as an alliance in one-minute-long teamwork matches and a 15-second period of autonomous working collaboratively to score points. Teams also compete in the robot skills challenge, where one robot attempts to score as many points as possible. These matches consist of driving skills matches, which will be entirely driver-controlled, and programming skills matches, which will be autonomous with limited human interaction. The object of
27048-421: The end of which Wei was swiftly overthrown by the Jin dynasty . The Jin fell to civil war upon the ascension of a developmentally disabled emperor ; the Five Barbarians then rebelled and ruled northern China as the Sixteen States . The Xianbei unified them as the Northern Wei , whose Emperor Xiaowen reversed his predecessors' apartheid policies and enforced a drastic sinification on his subjects . In
27244-418: The face of popular condemnation and opposition from his own Beiyang Army , he was forced to abdicate and re-establish the republic in 1916. After Yuan Shikai's death in 1916, China was politically fragmented. Its Beijing-based government was internationally recognized but virtually powerless; regional warlords controlled most of its territory. During this period , China participated in World War I and saw
27440-413: The failed Taiping Rebellion that ravaged southern China in the 1850s and 1860s and the Dungan Revolt (1862–1877) in the northwest. The initial success of the Self-Strengthening Movement of the 1860s was frustrated by a series of military defeats in the 1880s and 1890s. In the 19th century, the great Chinese diaspora began. Losses due to emigration were added to by conflicts and catastrophes such as
27636-425: The fall of 2020. After registration begins, any high school teams that wish to participate must apply for program admission. Unlike university participants, only those high school teams that show exceptional preparedness for this level of advanced competition will be allowed to compete. VEX AI robotics teams will be able to compete in the VEX AI Competition. Unlike VEX U, this competition will be completely separate from
27832-530: The field to score as many points as possible. These matches consist of Driving Skills Matches, which will be entirely driver-controlled, and Programming Skills Matches, which will be autonomous with limited human interaction. The scoring objects in VEX IQ Competition Slapshot are 2.5" (6.35 cm) diameter Discs. There are a total of (45) Discs on the field. The object of the game is to score as many points as possible with an alliance partner by scoring Discs in Goal Zones, removing Discs, and touching Contact Zones at
28028-425: The fifth-most diverse city in the United States in 2018. Indigenous tribes in North Texas included the Caddo , Tawakoni , Wichita , Kickapoo and Comanche . Spanish colonists claimed the territory of Texas in the 18th century as a part of the Viceroyalty of New Spain . Later, France also claimed the area but never established much settlement. In all, six flags have flown over the area preceding and during
28224-560: The former Soviet Bloc . Included in this population are Russians , Russian Jews , Ukrainians , Belarusians , Moldavians , Uzbek , Kirghiz , and others. The Russian-speaking population of Dallas has continued to grow in the sector of "American husbands-Russian wives". Russian DFW has its own newspaper, The Dallas Telegraph . In addition, Dallas and its suburbs are home to a large number of Asian Americans including those of Indian , Vietnamese , Chinese , Korean , Filipino , Japanese , and other heritage. Among large-sized cities in
28420-404: The game is to attain the highest score by scoring balls in either a low-scoring goal or a high-scoring goal in the center of the field. Additional points are scored by clearing the starting corrals of all balls and by parking via hanging on either a low or high bar on either side of the field. VEX IQ Challenge Rise Above is played on a six-foot by eight-foot rectangular field. Two robots compete in
28616-599: The game is to attain the highest score by scoring risers in the goal. There are a total of 27 risers, nine for each color (orange, purple, and teal). VEX IQ Challenge Squared Away is played on a four-foot by eight-foot rectangular field. The scoring objects in are three-inch diameter balls and seven-inch cubes. There are a total of 35 balls and seven cubes on the field. The object of the game is to score as many points as possible with an alliance partner in one of two ways: by scoring balls in or on cubes and by moving cubes to their respective scoring zones. VEX IQ Challenge Next Level
28812-415: The game. There are two scoring zones, sixteen low goals, twelve elevated goals, and one bridge on the field. VEX IQ Challenge Bank Shot is played on a four-foot by eight-foot rectangular field. The object of the game is to attain the highest score by emptying cutouts, scoring balls into the scoring zone and goals, and by parking robots on the ramp. There are a total of 44 balls available as scoring objects in
29008-427: The game. There are two scoring zones, sixteen low goals, twelve elevated goals, and one bridge on the field. VEX IQ Challenge Crossover is played on a four-foot by eight-foot rectangular field. The object of the game is to attain the highest score by scoring hexballs in their colored scoring zone and goals, and by parking and balancing robots on the bridge. There are a total of 28 hexballs available as scoring objects in
29204-399: The game. There is one scoring zone, one goal, one ramp, and sixteen cutouts on the field. Cube (i.e., if a team builds a Highrise of 3 red Scoring Cubes on the Highrise Base, a red cube in the Scoring Zone is worth 3 points.) VEX IQ Challenge Highrise is played on a four-foot by eight-foot rectangular field. The object of the game is to attain the highest possible score by scoring cubes in
29400-539: The ground on a bluff located near three forks of the Trinity River and left. Two years later, in 1841, he returned to establish a permanent settlement named Dallas. The origin of the name is uncertain. The official historical marker states it was named after Vice President George M. Dallas of Philadelphia , Pennsylvania . However, this is disputed. Other potential theories for the origin include his brother, Commodore Alexander James Dallas , as well as brothers Walter R. Dallas and James R. Dallas. A further theory gives
29596-460: The growth of Buddhism during the Tang, and a flourishing of philosophy and the arts, as landscape art and porcelain were brought to new levels of complexity. However, the military weakness of the Song army was observed by the Jin dynasty . In 1127, Emperor Huizong of Song and the capital Bianjing were captured during the Jin–Song wars . The remnants of the Song retreated to southern China . The Mongol conquest of China began in 1205 with
29792-409: The hardware for competition-level uses in VRC/VEX U. It is based on FreeRTOS . World Champions: [REDACTED] 55286A: "Makapaka" [REDACTED] 9123C: "Shanghai RuiGuan Team 9123C" Excellence Award: [REDACTED] 2654P: "Pronounce This" 2024 VRC MS Worlds: VEX V5 Robotics Competition (V5RC) is a robotics competition for registered middle and high school teams that utilize
29988-490: The highways throughout Texas. Springtime weather can be quite volatile , but temperatures themselves are mild. Late spring to early summer also tends to be the most humid, with humidity levels frequently exceeding 75%. The weather in Dallas is also generally pleasant from late September to early December and on many winter days. Autumn often brings more storms and tornado threats, but they are usually fewer and less severe than in spring. Each spring, cold fronts moving south from
30184-538: The hottest months, with an average high of 96.0 °F (36 °C ) and an average low of 76.7 °F (25 °C). Heat indices regularly surpass 105 °F (41 °C) due to elevated humidity during the summer months, making the summer heat almost unbearable. The all-time record high is 113 °F (45 °C), set on June 26 and 27, 1980 during the Heat Wave of 1980 at nearby Dallas/Fort Worth International Airport . Winters in Dallas are usually mild, with occasional cold spells. The average date of first frost
30380-400: The informal paramount leader . The current general secretary is Xi Jinping , who took office on 15 November 2012. At the local level, the secretary of the CCP committee of a subdivision outranks the local government level; CCP committee secretary of a provincial division outranks the governor while the CCP committee secretary of a city outranks the mayor. The government in China is under
30576-486: The largest ethnic group in the city proper, reflecting nationwide demographic trends. The Dallas area is a major living destination for Mexican Americans and other Hispanic and Latino American immigrants. The southwestern portion of the city, particularly Oak Cliff is chiefly inhabited by Hispanic and Latino American residents. The southeastern portion of the city Pleasant Grove is chiefly inhabited by African American and Hispanic or Latino American residents, while
30772-409: The largest importer of Russian crude oil in 2022. China is the third-largest country in the world by land area after Russia , and the third- or fourth-largest country in the world by total area. China's total area is generally stated as being approximately 9,600,000 km (3,700,000 sq mi). Specific area figures range from 9,572,900 km (3,696,100 sq mi) according to
30968-478: The multiple consultation mechanisms that exist in Chinese government. According to the CCP constitution , its highest body is the National Congress held every five years. The National Congress elects the Central Committee , who then elects the party's Politburo , Politburo Standing Committee and the general secretary ( party leader ), the top leadership of the country. The general secretary holds ultimate power and authority over party and state and serves as
31164-513: The name of the Qin dynasty (221–206 BCE). Although use in Indian sources precedes this dynasty, this derivation is still given in various sources. The origin of the Sanskrit word is a matter of debate. Alternative suggestions include the names for Yelang and the Jing or Chu state. The official name of the modern state is the "People's Republic of China" ( simplified Chinese : 中华人民共和国 ; traditional Chinese : 中華人民共和國 ; pinyin : Zhōnghuá rénmín gònghéguó ). The shorter form
31360-449: The opportunity to learn basic C++, but to collect data from sensors of to move the drivetrain, VEX uses a header file. PROS is a C/C++ programming environment for VEX V5 hardware maintained by students of Purdue University through Purdue ACM SIGBots. It provides a more bare-bones environment for more knowledgeable students that allows for an industry-applicable experience. It has a more robust API that allows for more precise control of
31556-420: The other three great powers, China was one of the four major Allies of World War II , and was later considered one of the primary victors in the war. After the surrender of Japan in 1945, Taiwan, including the Penghu , was handed over to Chinese control ; however, the validity of this handover is controversial. China emerged victorious but war-ravaged and financially drained. The continued distrust between
31752-403: The past 15 to 20 years had encouraged the horticulture of more cold-sensitive plants such as Washingtonia filifera and Washingtonia robusta palms , nearly all of which died off during the February 2021 North American winter storm . According to the American Lung Association , Dallas has the 12th highest air pollution among U.S. cities, ranking it behind Los Angeles and Houston . Much of
31948-533: The police killings of two black men from other states. The gunman, later identified as Micah Xavier Johnson, began firing at police officers at 8:58 p.m., killing five officers and injuring nine. Two bystanders were also injured. This marked the deadliest day for U.S. law enforcement since the September 11 attacks . Johnson told police during a standoff that he was upset about recent police shootings of black men and wanted to kill whites, especially white officers. After hours of negotiation failed, police resorted to
32144-413: The population were below the poverty line, including 33.6% of those under age 18 and 13.4% of those aged 65 or over. Per 2007's survey, the median price for a house was $ 129,600; by 2020, the median price for a house was valued at $ 252,300, with 54.4% of owner-occupied units from $ 50,000 to $ 299,999. The 2022 Point-In-Time Homeless Count found there were 4,410 homeless people in Dallas. According to
32340-417: The press , freedom of assembly , free formation of social organizations , freedom of religion and free access to the Internet . China has consistently been ranked amongst the lowest as an "authoritarian regime" by the Economist Intelligence Unit 's Democracy Index , ranking at 148th out of 167 countries in 2023. Other sources suggest that terming China as "authoritarian" does not sufficiently account for
32536-417: The protests and was replaced by Jiang Zemin . Jiang continued economic reforms, closing many SOEs and trimming down " iron rice bowl " (life-tenure positions). China's economy grew sevenfold during this time. British Hong Kong and Portuguese Macau returned to China in 1997 and 1999 , respectively, as special administrative regions under the principle of one country, two systems . The country joined
32732-410: The scoring zone and by building highrises of cubes of the same color on the highrise bases. There are a total of 36 cubes, twelve of each of three colors, available as scoring objects in the game. There is one scoring zone and three highrise bases on the field. Each robot begins a match on one of two starting positions and must occupy a space of less than 13 by 19 by 15 inches. VEX IQ Challenge Add It Up
32928-452: The season's competition are released during the world championship of the previous season. Starting in 2021, the VEX Robotics World Championship has been held in Dallas, Texas each year in mid-April or mid-May, depending on which league the teams are competing in. VEX V5 is a STEM learning system designed by VEX Robotics and the REC Foundation to help middle and high school students develop problem-solving and computational thinking skills. It
33124-421: The second-most in Texas and fourth-most in the United States, and 11 of those companies are located within Dallas city limits. Over 41 colleges and universities are located within its metropolitan area, which is the most of any metropolitan area in Texas. The city has a population from a myriad of ethnic and religious backgrounds and is one of the largest LGBT communities in the U.S. WalletHub named Dallas
33320-563: The sole control of the CCP. The CCP controls appointments in government bodies, with most senior government officials being CCP members. The National People's Congress (NPC), with nearly 3,000-members, is constitutionally the " highest organ of state power ", though it has been also described as a " rubber stamp " body. The NPC meets annually, while the NPC Standing Committee , around 150 members elected from NPC delegates, meets every couple of months. Elections are indirect and not pluralistic, with nominations at all levels being controlled by
33516-495: The south, the general Liu Yu secured the abdication of the Jin in favor of the Liu Song . The various successors of these states became known as the Northern and Southern dynasties , with the two areas finally reunited by the Sui in 581. The Sui restored the Han to power through China, reformed its agriculture, economy and imperial examination system, constructed the Grand Canal , and patronized Buddhism . However, they fell quickly when their conscription for public works and
33712-443: The standardization of Chinese characters, measurements , road widths, and currency . His dynasty also conquered the Yue tribes in Guangxi , Guangdong , and Northern Vietnam . The Qin dynasty lasted only fifteen years, falling soon after the First Emperor's death. Following widespread revolts during which the imperial library was burned , the Han dynasty emerged to rule China between 206 BCE and 220 CE, creating
33908-534: The subsequent Cultural Revolution was a period of social turmoil and persecution characterized by Maoist populism. Following the Sino-Soviet split , the Shanghai Communiqué in 1972 would precipitate the normalization of relations with the United States . Economic reforms that began in 1978 moved the country away from a socialist planned economy towards an increasingly capitalist market economy , spurring significant economic growth. The corresponding movement for increased democracy and liberalization stalled after
34104-423: The teamwork challenge as an alliance in one-minute-long teamwork matches, working collaboratively to score points. Teams also compete in the robot skills challenge, where one robot attempts to score as many points as possible. These matches consist of driving skills matches, which will be entirely driver-controlled, and programming skills matches, which will be autonomous with limited human interaction. The object of
34300-458: The time of the Warring States period of the 5th–3rd centuries BCE, there were seven major powerful states left. The Warring States period ended in 221 BCE after the state of Qin conquered the other six states, reunited China and established the dominant order of autocracy . King Zheng of Qin proclaimed himself the Emperor of the Qin dynasty , becoming the first emperor of a unified China. He enacted Qin's legalist reforms, notably
34496-412: The ultimate origin as the village of Dallas, Moray , Scotland, similar to the way Houston , Texas, was named after Sam Houston , whose ancestors came from the Scottish village of Houston, Renfrewshire . The Republic of Texas was annexed by the United States in 1845 and Dallas County was established the following year. Dallas was formally incorporated as a city on February 2, 1856. In the mid-1800s,
34692-417: The west in Tarrant County surrounding Fort Worth, as well as along Turtle Creek north of Downtown. Dallas, like many other cities, was founded along a river. The city was founded at the location of a "white rock crossing" of the Trinity River, where it was easier for wagons to cross the river in the days before ferries or bridges. The Trinity River, though not usefully navigable, is the major waterway through
34888-459: The west of the city is Mountain Creek Lake , once home to the Naval Air Station Dallas ( Hensley Field ) and a number of defense aircraft manufacturers. North Lake , a small body of water in an extension of the city limits surrounded by Irving and Coppell , initially served as a water source for a nearby power plant but is now being targeted for redevelopment as a recreational lake due to its proximity to Dallas/Fort Worth International Airport ,
35084-485: The world), 1,221 species of birds (eighth), 424 species of reptiles (seventh) and 333 species of amphibians (seventh). Wildlife in China shares habitat with, and bears acute pressure from, one of the world's largest population of humans. At least 840 animal species are threatened, vulnerable or in danger of local extinction , due mainly to human activity such as habitat destruction, pollution and poaching for food, fur and traditional Chinese medicine . Endangered wildlife
35280-428: The world), 13.2% from hydroelectric power (largest), 9.4% from wind (largest), 6.2% from solar energy (largest), 4.6% from nuclear energy (second-largest), 3.3% from natural gas (fifth-largest), and 2.2% from bioenergy (largest); in total, 31% of China's energy came from renewable energy sources. Despite its emphasis on renewables, China remains deeply connected to global oil markets and next to India, has been
35476-483: The world. White Rock Lake and Joe Pool Lake are reservoirs that comprise Dallas's other significant water features. Built at the beginning of the 20th century, White Rock Lake Park is a popular destination for boaters, rowers, joggers, and bikers, as well as visitors seeking peaceful respite from the city at the 66-acre (267,000 m ) Dallas Arboretum and Botanical Garden , on the lake's eastern shore. White Rock Creek feeds into White Rock Lake and then exits into
35672-453: Was wiped out by the KMT armies in 1934, leading the CCP to initiate the Long March and relocate to Yan'an in Shaanxi . It would be the base of the communists before major combat in the Chinese Civil War ended in 1949. In 1931, Japan invaded and occupied Manchuria . Japan invaded other parts of China in 1937, precipitating the Second Sino-Japanese War (1937–1945), a theater of World War II . The war forced an uneasy alliance between
35868-398: Was 11.2 inches (28 cm) on February 11, 2010. Dallas is the ninth-most-populous city in the United States and third in Texas after the cities of Houston and San Antonio . Its metropolitan area encompasses one-quarter of the population of Texas, and is the largest in the Southern U.S. and Texas followed by the Greater Houston metropolitan area . At the 2020 United States census
36064-484: Was 2.52 and the average family size was 3.41. In 2018, the owner-occupied housing rate was 40.2% and the renter-occupied housing rate was 59.8%. At the 2010 census, the city's age distribution of the population showed 26.5% under the age of 18 and 8.8% who were 65 years of age or older. The median age was 31.8 years. In 2010, 50.0% of the population was male and 50.0% was female. In 2020, the median age 32.9 years; for every 100 females, there were 98.4 males. According to
36260-476: Was Black or African American, 0.7% American Indian and Alaska Native , 2.9% Asian, and 2.6% from two or more races ; 42.4% of the total population was of Hispanic or Latino American origin (they may be of any race). At the U.S. Census Bureau 's 2019 estimates, 29.1% were non-Hispanic White 24.3% Black and African American, 0.3% American Indian or Alaska Native, 3.7% Asian, and 1.4% from two or more races. Native Hawaiian and other Pacific Islanders made up
36456-420: Was among the first skyscrapers west of the Mississippi and the tallest building in Texas for some time. It marked the prominence of Dallas as a city. A racetrack for thoroughbreds was built and their owners established the Dallas Jockey Club. Trotters raced at a track in Fort Worth, where a similar drivers club was based. The rapid expansion of population increased competition for jobs and housing. In 1910,
36652-415: Was begun in the early 2000s. The project area reaches for over 20 miles (32 km) in length within the city, while the overall geographical land area addressed by the Land Use Plan is approximately 44,000 acres (180 km ) in size—about 20% of the land area in Dallas. Green space along the river encompasses approximately 10,000 acres (40 km ), making it one of the largest and diverse urban parks in
36848-406: Was captured by a coalition of peasant rebel forces led by Li Zicheng . The Chongzhen Emperor committed suicide when the city fell. The Manchu Qing dynasty , then allied with Ming dynasty general Wu Sangui , overthrew Li's short-lived Shun dynasty and subsequently seized control of Beijing, which became the new capital of the Qing dynasty. The Qing dynasty, which lasted from 1644 until 1912,
37044-417: Was devastated and weakened by the An Lushan rebellion in the 8th century. In 907, the Tang disintegrated completely when the local military governors became ungovernable. The Song dynasty ended the separatist situation in 960, leading to a balance of power between the Song and the Liao dynasty . The Song was the first government in world history to issue paper money and the first Chinese polity to establish
37240-408: Was historically predominantly White (non-Hispanic Whites made up 82.8% of the population in 1930), but its population has diversified due to immigration and white flight over the 20th century. Since then, the non-Hispanic White population has declined to less than one-third of the city's population. According to the 2010 U.S. census, 50.7% of the population was White (28.8% non-Hispanic White), 24.8%
37436-440: Was introduced at the VEX Robotics World Championship in April 2019 as a replacement for a previous system called VEX EDR (VEX Cortex). The program utilizes the VEX V5 Construction and Control System as a standardized hardware, firmware, and software compatibility platform. Robotics teams and clubs can use the VEX V5 system to build robots to compete in the annual VEX V5 Robotics Competition. The VEX V5 Construction and Control System
37632-416: Was once an area characterized by high rates of poverty and crime is now one of the city's most attractive social and living destinations. Further east, in the southeast quadrant of the city, is the large neighborhood of Pleasant Grove . Once an independent city, it is a collection of mostly lower-income residential areas stretching to Seagoville in the southeast. Though a city neighborhood, Pleasant Grove
37828-408: Was rebuked, with millions rehabilitated. Deng Xiaoping took power in 1978, and instituted large-scale political and economic reforms , together with the " Eight Elders ", most senior and influential members of the party. The government loosened its control and the communes were gradually disbanded. Agricultural collectivization was dismantled and farmlands privatized. While foreign trade became
38024-405: Was rerouted in the late 1920s, the river has been little more than a drainage ditch within a floodplain for several miles above and below Downtown, with a more normal course further upstream and downstream, but as Dallas began shifting towards postindustrial society, public outcry about the lack of aesthetic and recreational use of the river ultimately gave way to the Trinity River Project , which
38220-492: Was strengthened in part to suppress anti-Qing sentiment with the policy of valuing agriculture and restraining commerce, like the Haijin during the early Qing period and ideological control as represented by the literary inquisition , causing some social and technological stagnation. In the mid-19th century, the Opium Wars with Britain and France forced China to pay compensation, open treaty ports, allow extraterritoriality for foreign nationals, and cede Hong Kong to
38416-422: Was the last imperial dynasty of China. The Ming-Qing transition (1618–1683) cost 25 million lives, but the Qing appeared to have restored China's imperial power and inaugurated another flowering of the arts. After the Southern Ming ended, the further conquest of the Dzungar Khanate added Mongolia, Tibet and Xinjiang to the empire. Meanwhile, China's population growth resumed and shortly began to accelerate. It
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