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146-501: A megacity is a very large city , typically with a population of more than 10 million people. The United Nations Department of Economic and Social Affairs (UN DESA) in its 2018 "World Urbanization Prospects" report defines megacities as urban agglomerations with over 10 million inhabitants. A University of Bonn report holds that they are "usually defined as metropolitan areas with a total population of 10 million or more people". Elsewhere in other sources, from five to eight million

292-500: A low unemployment rate of around 2.6%. Its poverty rate is the second highest among the G7 countries, and exceeds 15.7% of the population. Japan has the highest ratio of public debt to GDP among advanced economies, with a national debt estimated at 248% relative to GDP as of 2022 . The Japanese yen is the world's third-largest reserve currency after the US dollar and the euro. Japan

438-701: A security alliance . The United States is a major market for Japanese exports and a major source of Japanese imports, and is committed to defending the country, with military bases in Japan. In 2016, Japan announced the Free and Open Indo-Pacific vision, which frames its regional policies. Japan is also a member of the Quadrilateral Security Dialogue ("the Quad"), a multilateral security dialogue reformed in 2017 aiming to limit Chinese influence in

584-577: A central area containing buildings with special economic, political, and religious significance. Archaeologists refer to this area by the Greek term temenos or if fortified as a citadel . These spaces historically reflect and amplify the city's centrality and importance to its wider sphere of influence . Today cities have a city center or downtown , sometimes coincident with a central business district . Cities typically have public spaces where anyone can go. These include privately owned spaces open to

730-665: A central authority. The term can also refer either to the physical streets and buildings of the city or to the collection of people who dwell there and can be used in a general sense to mean urban rather than rural territory . National censuses use a variety of definitions – invoking factors such as population , population density , number of dwellings , economic function, and infrastructure – to classify populations as urban. Typical working definitions for small-city populations start at around 100,000 people. Common population definitions for an urban area (city or town) range between 1,500 and 50,000 people, with most U.S. states using

876-461: A central point. This form could evolve from successive growth over a long time, with concentric traces of town walls and citadels marking older city boundaries. In more recent history, such forms were supplemented by ring roads moving traffic around the outskirts of a town. Dutch cities such as Amsterdam and Haarlem are structured as a central square surrounded by concentric canals marking every expansion. In cities such as Moscow , this pattern

1022-552: A combination of these. Societies that live in cities are often called civilizations . The degree of urbanization is a modern metric to help define what comprises a city: "a population of at least 50,000 inhabitants in contiguous dense grid cells (>1,500 inhabitants per square kilometer)". This metric was "devised over years by the European Commission , OECD , World Bank and others, and endorsed in March [2021] by

1168-681: A common backdrop in dystopian science fiction , with examples such as the Sprawl in William Gibson 's Neuromancer , and Mega-City One , a megalopolis of between 50 and 800 million people (fluctuations due to war and disaster) across the east coast of the United States , in the Judge Dredd comic. In Demolition Man a megacity called " San Angeles " was formed from the joining of Los Angeles , Santa Barbara , San Diego and

1314-620: A continuous urban landscape called urban agglomeration , conurbation , or megalopolis (exemplified by the BosWash corridor of the Northeastern United States .) The emergence of cities from proto-urban settlements , such as Çatalhöyük , is a non-linear development that demonstrates the varied experiences of early urbanization . The cities of Jericho , Aleppo , Byblos , Faiyum , Yerevan , Athens , Matera , Damascus , and Argos are among those laying claim to

1460-652: A country's commitment to environmental sustainability. Japan is the world's fifth-largest emitter of carbon dioxide . As the host and signatory of the 1997 Kyoto Protocol , Japan is under treaty obligation to reduce its carbon dioxide emissions and to take other steps to curb climate change. In 2020, the government of Japan announced a target of carbon-neutrality by 2050. Environmental issues include urban air pollution ( NOx , suspended particulate matter , and toxics ), waste management , water eutrophication , nature conservation , climate change , chemical management and international co-operation for conservation. Japan

1606-430: A distinctive elite social class, but it should indeed be considered a city based on a functional redefinition of urban development. In particular, Jenné-Jeno featured settlement mounds arranged according to a horizontal, rather than vertical, power hierarchy, and served as a center of specialized production and exhibited functional interdependence with the surrounding hinterland. More recently, scholars have concluded that

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1752-424: A given area. But others associate it with decentralization (spread of population without a well-defined center), discontinuity (leapfrog development), segregation of uses, etc. Gentrification and urban gentrification are terms for the socio-cultural changes in an area as a result of wealthier people buying property in a less prosperous community. As living costs rise, lower-income residents are forced to move out of

1898-477: A grid plan with specialized districts used across the Hellenistic Mediterranean . The urban-type settlement extends far beyond the traditional boundaries of the city proper in a form of development sometimes described critically as urban sprawl . Decentralization and dispersal of city functions (commercial, industrial, residential, cultural, political) has transformed the very meaning of

2044-450: A homeless person remain in an emergency homeless shelter it was thought to be better to quickly get the person permanent housing of some sort and the necessary support services to sustain a new home. But there are many complications with this kind of program and these must be dealt with to make such an initiative work successfully in the middle to long term. Traffic congestion is a condition on road networks that occurs as use increases, and

2190-511: A key role in both the economy and government. Late antique cities in the East were also undergoing intense transformations, with increased political participation of the crowds and demographical fluctuations. Christian communities and their doctrinal differences increasingly shaped the urban fabric. The locus of power shifted to Constantinople and to the ascendant Islamic civilization with its major cities Baghdad , Cairo , and Córdoba . From

2336-545: A kingdom in central Japan in 660 BC, beginning a continuous imperial line . Japan first appears in written history in the Chinese Book of Han , completed in 111 AD. Buddhism was introduced to Japan from Baekje (a Korean kingdom) in 552, but the development of Japanese Buddhism was primarily influenced by China. Despite early resistance, Buddhism was promoted by the ruling class, including figures like Prince Shōtoku , and gained widespread acceptance beginning in

2482-491: A large cooperative sector, with three of the world's ten largest cooperatives, including the largest consumer cooperative and the largest agricultural cooperative as of 2018 . It ranks highly for competitiveness and economic freedom . Japan ranked sixth in the Global Competitiveness Report in 2019. It attracted 31.9 million international tourists in 2019, and was ranked eleventh in

2628-479: A major catalyst for further administrative reforms. These reforms culminated with the promulgation of the Taihō Code , which consolidated existing statutes and established the structure of the central and subordinate local governments. These legal reforms created the ritsuryō state, a system of Chinese-style centralized government that remained in place for half a millennium. The Nara period (710–784) marked

2774-531: A minimum between 1,500 and 5,000 inhabitants. Some jurisdictions set no such minima. In the United Kingdom , city status is awarded by the Crown and then remains permanent. (Historically, the qualifying factor was the presence of a cathedral , resulting in some very small cities such as Wells , with a population of 12,000 as of 2018 , and St Davids , with a population of 1,841 as of 2011 .) According to

2920-554: A new constitution emphasizing liberal democratic practices. The Allied occupation ended with the Treaty of San Francisco in 1952, and Japan was granted membership in the United Nations in 1956. A period of record growth propelled Japan to become the second-largest economy in the world; this ended in the mid-1990s after the popping of an asset price bubble , beginning the " Lost Decade ". In 2011, Japan suffered one of

3066-465: A new system of taxation. The true aim of the reforms was to bring about greater centralization and to enhance the power of the imperial court, which was also based on the governmental structure of China. Envoys and students were dispatched to China to learn about Chinese writing, politics, art, and religion. The Jinshin War of 672, a bloody conflict between Prince Ōama and his nephew Prince Ōtomo , became

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3212-622: A population of nearly 124 million as of 2024, and is the eleventh-most populous country . Its capital and largest city is Tokyo ; the Greater Tokyo Area is the largest metropolitan area in the world, with more than 38 million inhabitants as of 2016. Japan is divided into 47 administrative prefectures and eight traditional regions . About three-quarters of the country's terrain is mountainous and heavily forested, concentrating its agriculture and highly urbanized population along its eastern coastal plains . The country sits on

3358-703: A privileged elite among towns having won self-governance from their local lord or having been granted self-governance by the emperor and being placed under his immediate protection. By 1480, these cities, as far as still part of the empire, became part of the Imperial Estates governing the empire with the emperor through the Imperial Diet . By the 13th and 14th centuries, some cities become powerful states, taking surrounding areas under their control or establishing extensive maritime empires. In Italy, medieval communes developed into city-states including

3504-442: A result, some critics argue that sprawl has certain disadvantages including longer transport distances to work, high car dependence , inadequate facilities (e.g. health, cultural. etc.) and higher per-person infrastructure costs. Discussions and debates about sprawl are often obfuscated by the ambiguity associated with the phrase. For example, some commentators measure sprawl only with the average number of residential units per acre in

3650-495: A rule cannot produce their own food and therefore must develop some relationship with a hinterland that sustains them. Only in special cases such as mining towns which play a vital role in long-distance trade, are cities disconnected from the countryside which feeds them. Thus, centrality within a productive region influences siting, as economic forces would, in theory, favor the creation of marketplaces in optimal mutually reachable locations. The vast majority of cities have

3796-465: A significant shift to urbanization. The early 20th century saw a period of Taishō democracy (1912–1926) overshadowed by increasing expansionism and militarization . World War I allowed Japan, which joined the side of the victorious Allies , to capture German possessions in the Pacific and China in 1920 . The 1920s saw a political shift towards statism , a period of lawlessness following

3942-549: A super-wealthy elite living in gated communities and large masses of people living in substandard housing with inadequate infrastructure and otherwise poor conditions. Cities around the world have expanded physically as they grow in population, with increases in their surface extent, with the creation of high-rise buildings for residential and commercial use, and with development underground. Urbanization can create rapid demand for water resources management , as formerly good sources of freshwater become overused and polluted, and

4088-423: A temple. A minority viewpoint considers that cities may have arisen without agriculture, due to alternative means of subsistence (fishing), to use as communal seasonal shelters, to their value as bases for defensive and offensive military organization, or to their inherent economic function. Cities played a crucial role in the establishment of political power over an area, and ancient leaders such as Alexander

4234-567: A workers' town associated with the pyramid of Senusret II , and the religious city Amarna built by Akhenaten and abandoned. These sites appear planned in a highly regimented and stratified fashion, with a minimalistic grid of rooms for the workers and increasingly more elaborate housing available for higher classes. In Mesopotamia, the civilization of Sumer , followed by Assyria and Babylon , gave rise to numerous cities, governed by kings and fostered multiple languages written in cuneiform . The Phoenician trading empire, flourishing around

4380-529: Is reclaimed land ( umetatechi ). Lake Biwa is an ancient lake and the country's largest freshwater lake. Japan is substantially prone to earthquakes , tsunami and volcanic eruptions because of its location along the Pacific Ring of Fire. It has the 17th highest natural disaster risk as measured in the 2016 World Risk Index. Japan has 111 active volcanoes. Destructive earthquakes, often resulting in tsunami, occur several times each century;

4526-430: Is 377,975.24 km (145,937.06 sq mi). Japan has the sixth-longest coastline in the world at 29,751 km (18,486 mi). Because of its far-flung outlying islands, Japan's exclusive economic zone is the eighth-largest in the world, covering 4,470,000 km (1,730,000 sq mi). The Japanese archipelago is 67% forests and 14% agricultural . The primarily rugged and mountainous terrain

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4672-722: Is a unitary state and constitutional monarchy in which the power of the Emperor is limited to a ceremonial role . Executive power is instead wielded by the Prime Minister of Japan and his Cabinet , whose sovereignty is vested in the Japanese people. Naruhito is the Emperor of Japan, having succeeded his father Akihito upon his accession to the Chrysanthemum Throne in 2019. Japan's legislative organ

4818-429: Is characterized by slower speeds, longer trip times, increased pollution, and increased vehicular queueing . The Texas Transportation Institute estimated that, in 2000, the 75 largest metropolitan areas experienced 3.6 billion vehicle-hours of delay, resulting in 5.7 billion U.S. gallons (21.6 billion liters) in wasted fuel and $ 67.5 billion in lost productivity, or about 0.7% of the nation's GDP . It also estimated that

4964-742: Is considered the minimum threshold, along with a population density of at least 2,000 per square kilometre. The terms conurbation , metropolis , and metroplex are also applied to the latter. The total number of megacities in the world varies between different sources and their publication dates. The world had 33 according to UN DESA (in 2018), 25 according to the OCDE, 45 according to CityPopulation.de (in 2023), and 44 according to Demographia (in 2023). A good percentage of these urban agglomerations are in China and India . The other four countries with more than one megacity are Brazil , Japan , Pakistan , and

5110-517: Is divided into 47 prefectures, each overseen by an elected governor and legislature. In the following table, the prefectures are grouped by region : 7.  Fukushima 14.  Kanagawa 23.  Aichi 30.  Wakayama 35.  Yamaguchi 39.  Kōchi 47.  Okinawa A member state of the United Nations since 1956, Japan is one of the G4 countries seeking reform of

5256-730: Is governed by the Ministry of Defense , and primarily consists of the Japan Ground Self-Defense Force , the Japan Maritime Self-Defense Force , and the Japan Air Self-Defense Force . The deployment of troops to Iraq and Afghanistan marked the first overseas use of Japan's military since World War II. The Government of Japan has been making changes to its security policy which include the establishment of

5402-539: Is not heavy, but the islands usually develop deep snowbanks in the winter. In the Sea of Japan region on Honshu's west coast, northwest winter winds bring heavy snowfall during winter. In the summer, the region sometimes experiences extremely hot temperatures because of the Foehn . The Central Highland has a typical inland humid continental climate, with large temperature differences between summer and winter. The mountains of

5548-439: Is restricted for habitation. Thus the habitable zones, mainly in the coastal areas, have very high population densities: Japan is the 40th most densely populated country even without considering that local concentration. Honshu has the highest population density at 450 persons/km (1200/sq mi) as of 2010 , while Hokkaido has the lowest density of 64.5 persons/km as of 2016 . As of 2014 , approximately 0.5% of Japan's total area

5694-517: Is still clearly visible. A system of rectilinear city streets and land plots, known as the grid plan , has been used for millennia in Asia, Europe, and the Americas. The Indus Valley Civilization built Mohenjo-Daro , Harappa , and other cities on a grid pattern, using ancient principles described by Kautilya , and aligned with the compass points . The ancient Greek city of Priene exemplifies

5840-482: Is the National Diet , a bicameral parliament . It consists of a lower House of Representatives with 465 seats, elected by popular vote every four years or when dissolved, and an upper House of Councillors with 245 seats, whose popularly-elected members serve six-year terms. There is universal suffrage for adults over 18 years of age, with a secret ballot for all elected offices. The prime minister as

5986-420: Is the most urban continent, with four-fifths of its population living in cities, including one-fifth of the population said to live in shantytowns ( favelas , poblaciones callampas , etc.). Batam , Indonesia , Mogadishu , Somalia , Xiamen , China , and Niamey , Niger , are considered among the world's fastest-growing cities, with annual growth rates of 5–8%. In general, the more developed countries of

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6132-592: Is the oldest unamended constitution in the world. Statutory law originates in the legislature, and the constitution requires that the emperor promulgate legislation passed by the Diet without giving him the power to oppose legislation. The main body of Japanese statutory law is called the Six Codes . Japan's court system is divided into four basic tiers: the Supreme Court and three levels of lower courts. Japan

6278-574: Is typically used in everyday speech and reflects shifts in Japanese phonology during the Edo period . The characters 日本 mean "sun origin", which is the source of the popular Western epithet "Land of the Rising Sun". The name "Japan" is based on Min or Wu Chinese pronunciations of 日本 and was introduced to European languages through early trade. In the 13th century, Marco Polo recorded

6424-571: Is very heavy, especially during the rainy season. The main rainy season begins in early May in Okinawa, and the rain front gradually moves north. In late summer and early autumn, typhoons often bring heavy rain. According to the Environment Ministry, heavy rainfall and increasing temperatures have caused problems in the agricultural industry and elsewhere. The highest temperature ever measured in Japan, 41.1 °C (106.0 °F),

6570-483: Is written using the kanji 日本 and is pronounced Nihon or Nippon . Before 日本 was adopted in the early 8th century, the country was known in China as Wa ( 倭 , changed in Japan around 757 to 和 ) and in Japan by the endonym Yamato . Nippon , the original Sino-Japanese reading of the characters, is favored for official uses, including on Japanese banknotes and postage stamps. Nihon

6716-837: The shōgun led to the Boshin War and the establishment of a centralized state nominally unified under the emperor (the Meiji Restoration ). Adopting Western political, judicial, and military institutions, the Cabinet organized the Privy Council , introduced the Meiji Constitution (November 29, 1890), and assembled the Imperial Diet . During the Meiji period (1868–1912), the Empire of Japan emerged as

6862-416: The 1923 Tokyo earthquake killed over 140,000 people. More recent major quakes are the 1995 Great Hanshin earthquake and the 2011 Tōhoku earthquake, which triggered a large tsunami. The climate of Japan is predominantly temperate but varies greatly from north to south. The northernmost region, Hokkaido, has a humid continental climate with long, cold winters and very warm to cool summers. Precipitation

7008-463: The Asuka period (592–710). In 645, the government led by Prince Naka no Ōe and Fujiwara no Kamatari devised and implemented the far-reaching Taika Reforms . The Reform began with land reform, based on Confucian ideas and philosophies from China . It nationalized all land in Japan, to be distributed equally among cultivators, and ordered the compilation of a household registry as the basis for

7154-539: The Battle of Sekigahara in 1600. He was appointed shōgun by Emperor Go-Yōzei in 1603 and established the Tokugawa shogunate at Edo (modern Tokyo). The shogunate enacted measures including buke shohatto , as a code of conduct to control the autonomous daimyō , and in 1639 the isolationist sakoku ("closed country") policy that spanned the two and a half centuries of tenuous political unity known as

7300-519: The Chūgoku and Shikoku regions shelter the Seto Inland Sea from seasonal winds, bringing mild weather year-round. The Pacific coast features a humid subtropical climate that experiences milder winters with occasional snowfall and hot, humid summers because of the southeast seasonal wind. The Ryukyu and Nanpō Islands have a subtropical climate , with warm winters and hot summers. Precipitation

7446-601: The Early Mandarin Chinese pronunciation of the characters 日本國 as Cipangu . The old Malay name for Japan, Japang or Japun , was borrowed from a southern coastal Chinese dialect and encountered by Portuguese traders in Southeast Asia , who brought the word to Europe in the early 16th century. The first version of the name in English appears in a book published in 1577, which spelled

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7592-588: The Edo period (1603–1868). Modern Japan's economic growth began in this period, resulting in roads and water transportation routes, as well as financial instruments such as futures contracts , banking and insurance of the Osaka rice brokers . The study of Western sciences ( rangaku ) continued through contact with the Dutch enclave in Nagasaki . The Edo period gave rise to kokugaku ("national studies"),

7738-756: The Indo-Pacific region, along with the United States, Australia, and India. Japan is engaged in several territorial disputes with its neighbors. Japan contests Russia's control of the Southern Kuril Islands , which were occupied by the Soviet Union in 1945. South Korea's control of the Liancourt Rocks is acknowledged but not accepted as they are claimed by Japan. Japan has strained relations with China and Taiwan over

7884-755: The Kurils . The Allies (led by the United States) repatriated millions of Japanese settlers from their former colonies and military camps throughout Asia, largely eliminating the Japanese Empire and its influence over the territories it conquered. The Allies convened the International Military Tribunal for the Far East to prosecute Japanese leaders except the Emperor for Japanese war crimes . In 1947, Japan adopted

8030-670: The National Security Council , the adoption of the National Security Strategy, and the development of the National Defense Program Guidelines. In May 2014, Prime Minister Shinzo Abe said Japan wanted to shed the passiveness it has maintained since the end of World War II and take more responsibility for regional security. In December 2022, Prime Minister Fumio Kishida further confirmed this trend, instructing

8176-559: The Pacific War and two atomic bombings , Japan surrendered in 1945 and came under Allied occupation . After the war, the country underwent rapid economic growth , although its economy has stagnated since 1990 . Japan is a constitutional monarchy with a bicameral legislature, the National Diet . A great power and the only Asian member of the G7 , Japan has constitutionally renounced its right to declare war , but maintains one of

8322-603: The Republic of Venice and the Republic of Genoa . In Northern Europe, cities including Lübeck and Bruges formed the Hanseatic League for collective defense and commerce. Their power was later challenged and eclipsed by the Dutch commercial cities of Ghent , Ypres , and Amsterdam . Similar phenomena existed elsewhere, as in the case of Sakai , which enjoyed considerable autonomy in late medieval Japan. In

8468-469: The Sea of Okhotsk to the East China Sea . The country's five main islands, from north to south, are Hokkaido , Honshu , Shikoku , Kyushu and Okinawa . The Ryukyu Islands , which include Okinawa, are a chain to the south of Kyushu. The Nanpō Islands are south and east of the main islands of Japan. Together they are often known as the Japanese archipelago . As of 2019 , Japan's territory

8614-550: The Security Council . Japan is a member of the G7 , APEC , and " ASEAN Plus Three ", and is a participant in the East Asia Summit . It is the world's fifth-largest donor of official development assistance , donating US$ 9.2 billion in 2014. In 2024, Japan had the fourth-largest diplomatic network in the world. Japan has close economic and military relations with the United States, with which it maintains

8760-720: The Senkaku Islands and the status of Okinotorishima . Japan is the third highest-ranked Asian country in the 2024 Global Peace Index . It spent 1.1% of its total GDP on its defence budget in 2022, and maintained the tenth-largest military budget in the world in 2022. The country's military (the Japan Self-Defense Forces) is restricted by Article 9 of the Japanese Constitution , which renounces Japan's right to declare war or use military force in international disputes. The military

8906-829: The United Nations ... largely for the purpose of international statistical comparison". The word city and the related civilization come from the Latin root civitas , originally meaning 'citizenship' or 'community member' and eventually coming to correspond with urbs , meaning 'city' in a more physical sense. The Roman civitas was closely linked with the Greek polis —another common root appearing in English words such as metropolis . In toponymic terminology, names of individual cities and towns are called astionyms (from Ancient Greek ἄστυ 'city or town' and ὄνομα 'name'). Urban geography deals both with cities in their larger context and with their internal structure. Cities are estimated to cover about 3% of

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9052-418: The United States . African megacities are present in Nigeria , Egypt , South Africa , Angola and the DRC ; European megacities are present in Russia , France , the United Kingdom , and Turkey (also in Asia ); megacities can be found in Latin America in the countries of Brazil, Mexico , Colombia , Peru , and Argentina . Some sources identify the Greater Tokyo Area as the largest megacity in

9198-455: The Uruk period . In the fourth and third millennium BC , complex civilizations flourished in the river valleys of Mesopotamia , India , China , and Egypt . Excavations in these areas have found the ruins of cities geared variously towards trade, politics, or religion. Some had large, dense populations , but others carried out urban activities in the realms of politics or religion without having large associated populations. Among

9344-451: The atmosphere of chemicals , particulate matter , or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment . Many urban areas have significant problems with smog , a type of air pollution derived from vehicle emissions from internal combustion engines and industrial fumes that react in the atmosphere with sunlight to form secondary pollutants that also combine with

9490-569: The civilization of Djenne-Djenno was likely established by the Mande progenitors of the Bozo people . Their habitation of the site spanned the period from 3rd century BCE to 13th century CE. Archaeological evidence from Jenné-Jeno, specifically the presence of non-West African glass beads dated from the third century BCE to the fourth century CE, indicates that pre-Arabic trade contacts probably existed between Jenné-Jeno and North Africa. Additionally, other early urban centers in West Africa, dated to around 500 CE, include Awdaghust , Kumbi Saleh ,

9636-569: The commune ( in France and Chile ; or comune in Italy). Japan Japan is an island country in East Asia . It is located in the Pacific Ocean off the northeast coast of the Asian mainland , and is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea in the south. The Japanese archipelago consists of four major islands— Hokkaido , Honshu , Shikoku , and Kyushu —and thousands of smaller islands , covering 377,975 square kilometres (145,937 sq mi). Japan has

9782-401: The end of the shogunate and the restoration of imperial power in 1868. In the Meiji period , the Empire of Japan pursued rapid industrialization and modernization , as well as militarism and overseas colonization . In 1937, Japan invaded China , and in 1941 attacked the United States and European colonial powers, entering World War II as an Axis power . After suffering defeat in

9928-427: The government workers . (This arrangement contrasts with the more typically horizontal relationships in a tribe or village accomplishing common goals through informal agreements between neighbors, or the leadership of a chief.) The governments may be based on heredity, religion, military power, work systems such as canal-building, food distribution, land-ownership, agriculture, commerce, manufacturing, finance, or

10074-411: The head of government has the power to appoint and dismiss Ministers of State , and is appointed by the emperor after being designated from among the members of the Diet. Shigeru Ishiba is Japan's prime minister; he took office after winning the 2024 Liberal Democratic Party leadership election . The broadly conservative Liberal Democratic Party has been the dominant party in the country since

10220-472: The knowledge economy . A new smart city paradigm, supported by institutions such as the RAND Corporation and IBM , is bringing computerized surveillance , data analysis, and governance to bear on cities and city dwellers. Some companies are building brand-new master-planned cities from scratch on greenfield sites. Urbanization is the process of migration from rural to urban areas, driven by various political, economic, and cultural factors. Until

10366-490: The samurai . In 1185, following the defeat of the Taira clan by the Minamoto clan in the Genpei War , samurai Minamoto no Yoritomo established a military government at Kamakura . After Yoritomo's death, the Hōjō clan came to power as regents for the shōgun . The Zen school of Buddhism was introduced from China in the Kamakura period (1185–1333) and became popular among the samurai class. The Kamakura shogunate repelled Mongol invasions in 1274 and 1281 but

10512-564: The service economy and public-private partnerships , with concomitant gentrification , uneven revitalization efforts , and selective cultural development. Under the Great Leap Forward and subsequent five-year plans continuing today, China has undergone concomitant urbanization and industrialization and become the world's leading manufacturer . Amidst these economic changes, high technology and instantaneous telecommunication enable select cities to become centers of

10658-666: The world population now lives in cities, which has had profound consequences for global sustainability . Present-day cities usually form the core of larger metropolitan areas and urban areas —creating numerous commuters traveling toward city centres for employment, entertainment, and education. However, in a world of intensifying globalization , all cities are to varying degrees also connected globally beyond these regions. This increased influence means that cities also have significant influences on global issues , such as sustainable development , climate change , and global health . Because of these major influences on global issues,

10804-535: The " Global North " remain more urbanized than the less developed countries of the " Global South "—but the difference continues to shrink because urbanization is happening faster in the latter group. Asia is home to by far the greatest absolute number of city-dwellers: over two billion and counting. The UN predicts an additional 2.5 billion city dwellers (and 300 million fewer country dwellers) worldwide by 2050, with 90% of urban population expansion occurring in Asia and Africa. Megacities , cities with populations in

10950-539: The "functional definition", a city is not distinguished by size alone, but also by the role it plays within a larger political context. Cities serve as administrative, commercial, religious, and cultural hubs for their larger surrounding areas. The presence of a literate elite is often associated with cities because of the cultural diversities present in a city. A typical city has professional administrators , regulations, and some form of taxation (food and other necessities or means to trade for them) to support

11096-532: The 18th century), Ile-Ifẹ̀ (70,000 to 105,000 inhabitants in the 14th and 15th centuries), Niani (50,000 inhabitants in 1400 AD) and Timbuktu (100,000 inhabitants in 1450 AD). In the West, nation-states became the dominant unit of political organization following the Peace of Westphalia in the seventeenth century. Western Europe's larger capitals (London and Paris) benefited from the growth of commerce following

11242-420: The 18th century, an equilibrium existed between the rural agricultural population and towns featuring markets and small-scale manufacturing. With the agricultural and industrial revolutions urban population began its unprecedented growth, both through migration and demographic expansion . In England , the proportion of the population living in cities jumped from 17% in 1801 to 72% in 1891. In 1900, 15% of

11388-462: The 1923 Great Tokyo Earthquake , the passing of laws against political dissent , and a series of attempted coups . This process accelerated during the 1930s, spawning several radical nationalist groups that shared a hostility to liberal democracy and a dedication to expansion in Asia. In 1931, Japan invaded China and occupied Manchuria , which led to the establishment of puppet state of Manchukuo in 1932; following international condemnation of

11534-664: The 1950s, often called the 1955 System . Historically influenced by Chinese law , the Japanese legal system developed independently during the Edo period through texts such as Kujikata Osadamegaki . Since the late 19th century, the judicial system has been largely based on the civil law of Europe, notably Germany. In 1896, Japan established a civil code based on the German Bürgerliches Gesetzbuch , which remains in effect with post–World War II modifications. The Constitution of Japan , adopted in 1947,

11680-718: The 30th and 18th centuries BC. Mesoamerica saw the rise of early urbanism in several cultural regions, beginning with the Olmec and spreading to the Preclassic Maya , the Zapotec of Oaxaca, and Teotihuacan in central Mexico. Later cultures such as the Aztec , Andean civilizations , Mayan , Mississippians , and Pueblo peoples drew on these earlier urban traditions. Many of their ancient cities continue to be inhabited, including major metropolitan cities such as Mexico City , in

11826-750: The 9th through the end of the 12th century, Constantinople , the capital of the Eastern Roman Empire , was the largest and wealthiest city in Europe, with a population approaching 1 million. The Ottoman Empire gradually gained control over many cities in the Mediterranean area, including Constantinople in 1453 . In the Holy Roman Empire , beginning in the 12th century, free imperial cities such as Nuremberg , Strasbourg , Frankfurt , Basel , Zürich , and Nijmegen became

11972-566: The Andes, the first urban centers developed in the Norte Chico civilization , Chavin and Moche cultures, followed by major cities in the Huari , Chimu , and Inca cultures. The Norte Chico civilization included as many as 30 major population centers in what is now the Norte Chico region of north-central coastal Peru . It is the oldest known civilization in the Americas, flourishing between

12118-529: The Great founded and created them with zeal. Jericho and Çatalhöyük , dated to the eighth millennium BC , are among the earliest proto-cities known to archaeologists. However, the Mesopotamian city of Uruk from the mid-fourth millennium BC (ancient Iraq) is considered by most archaeologists to be the first true city, innovating many characteristics for cities to follow, with its name attributed to

12264-761: The National Police Agency is administered by the National Public Safety Commission . The Special Assault Team comprises national-level counter-terrorism tactical units that cooperate with territorial-level Anti-Firearms Squads and Counter-NBC Terrorism Squads . The Japan Coast Guard guards territorial waters surrounding Japan and uses surveillance and control countermeasures against smuggling, marine environmental crime , poaching, piracy, spy ships, unauthorized foreign fishing vessels, and illegal immigration. The Firearm and Sword Possession Control Law strictly regulates

12410-589: The Pacific Ring of Fire , making its islands prone to destructive earthquakes and tsunamis . The first known habitation of the archipelago dates to the Upper Paleolithic , with the beginning Japanese Paleolithic dating to c.  36,000 BC . Between the fourth and sixth centuries, its kingdoms were united under an emperor in Nara , and later Heian-kyō . From the 12th century, actual power

12556-624: The Pacific . Throughout areas occupied by Japan during the war, numerous abuses were committed against local inhabitants, with many forced into sexual slavery . After Allied victories during the next four years, which culminated in the Soviet invasion of Manchuria and the atomic bombings of Hiroshima and Nagasaki in 1945, Japan agreed to an unconditional surrender . The war cost Japan millions of lives and its colonies , including de jure parts of Japan such as Korea , Taiwan , Karafuto , and

12702-417: The United States (9.9 percent), and Australia (9.8 percent). Japan's main imports are machinery and equipment, fossil fuels, foodstuffs, chemicals, and raw materials for its industries. The Japanese variant of capitalism has many distinct features: keiretsu enterprises are influential, and lifetime employment and seniority-based career advancement are common in the Japanese work environment . Japan has

12848-491: The absolute number of slum dwellers is rising. The majority of these are located in informal settlements which often lack sufficient quality housing, sanitation, drainage, water access, and officially recognized addresses. The increase in informal settlement population has been caused by massive migration, both internal and transnational, into cities, which has caused growth rates of urban populations and spatial concentrations not seen before in history. These issues raise problems in

12994-536: The ancient capital of Ghana, and Maranda , a center located on a trade route between Egypt and Gao. The dissolution of the Roman Empire in the West was connected with profound changes in urban fabric of western Europe. In places where Roman administration quickly weakened urbanism went through a profound crisis, even if it continued to remain an important symbolic factor. In regions like Italy or Spain cities diminished in size but nevertheless continued to play

13140-524: The annual cost of congestion for each driver was approximately $ 1,000 in very large cities and $ 200 in small cities. Traffic congestion is increasing in major cities and delays are becoming more frequent in smaller cities and rural areas. Urban sprawl , also known as suburban sprawl, is a multifaceted concept, which includes the spreading outwards of a city and its suburbs to its outskirts to low-density, auto-dependent development on rural land, with associated design features that encourage car dependency . As

13286-464: The athletic, artistic, spiritual, and political life of the polis. Rome was the first city that surpassed one million inhabitants. Under the authority of its empire , Rome transformed and founded many cities ( Colonia ), and with them brought its principles of urban architecture, design, and society. In the ancient Americas , early urban traditions developed in the Andes and Mesoamerica . In

13432-407: The benefit of mitigating the urban heat island effect, especially in cities that are in warmer climates. These spaces prevent carbon imbalances, extreme habitat losses, electricity and water consumption, and human health risks. The urban structure generally follows one or more basic patterns: geomorphic, radial, concentric, rectilinear, and curvilinear. The physical environment generally constrains

13578-476: The capital, settling on Heian-kyō (modern-day Kyoto ) in 794. This marked the beginning of the Heian period (794–1185), during which a distinctly indigenous Japanese culture emerged. Murasaki Shikibu 's The Tale of Genji and the lyrics of Japan's national anthem " Kimigayo " were written during this time. Japan's feudal era was characterized by the emergence and dominance of a ruling class of warriors,

13724-630: The census in the year 742 recorded in the New Book of Tang , 362,921 families with 1,960,188 persons were counted in Jingzhao Fu (京兆府), the metropolitan area including small cities in the vicinity of Chang'an. The medieval settlement surrounding Angkor , the one-time capital of the Khmer Empire which flourished between the 9th and 15th centuries, could have supported a population of up to one million people. From around 1825 to 1918 London

13870-550: The civilian ownership of guns, swords, and other weaponry. According to the United Nations Office on Drugs and Crime , among the member states of the UN that report statistics as of 2018 , the incidence rates of violent crimes such as murder, abduction, sexual violence, and robbery are very low in Japan. Japanese society traditionally places a strong emphasis on collective harmony and conformity , which has led to

14016-419: The community leading to an increase in average income, which in turn makes the area more desirable to other wealthier property or business owners, further pushing the living costs up. This process also tends to lead to a decrease in average family size in the area. This type of population change reduces industrial land use when it is redeveloped for commerce and housing. Air pollution is the introduction into

14162-542: The early Old World cities, Mohenjo-daro of the Indus Valley civilization in present-day Pakistan , existing from about 2600 BC, was one of the largest, with a population of 50,000 or more and a sophisticated sanitation system . China's planned cities were constructed according to sacred principles to act as celestial microcosms . The Ancient Egyptian cities known physically by archaeologists are not extensive. They include (known by their Arab names) El Lahun ,

14308-628: The emergence of a Japanese state centered on the Imperial Court in Heijō-kyō (modern Nara ). The period is characterized by the appearance of a nascent literary culture with the completion of the Kojiki (712) and Nihon Shoki (720), as well as the development of Buddhist-inspired artwork and architecture . A smallpox epidemic in 735–737 is believed to have killed as much as one-third of Japan's population. In 784, Emperor Kanmu moved

14454-484: The emergence of an Atlantic trade. However, most towns remained small. During the Spanish colonization of the Americas, the old Roman city concept was extensively used. Cities were founded in the middle of the newly conquered territories and were bound to several laws regarding administration, finances, and urbanism. The growth of the modern industry from the late 18th century onward led to massive urbanization and

14600-812: The first millennium AD, the Khmer capital of Angkor in Cambodia grew into the most extensive preindustrial settlement in the world by area, covering over 1,000 km and possibly supporting up to one million people. West Africa already had cities before the Common Era , but the consolidation of Trans-Saharan trade in the Middle Ages multiplied the number of cities in the region, as well as making some of them very populous, notably Gao (72,000 inhabitants in 800 AD), Oyo-Ile (50,000 inhabitants in 1400 AD, and may have reached up to 140,000 inhabitants in

14746-710: The first time, initiating direct commercial and cultural exchange between Japan and the West. Oda Nobunaga used European technology and firearms to conquer many other daimyō ; his consolidation of power began what was known as the Azuchi–Momoyama period . After the death of Nobunaga in 1582, his successor, Toyotomi Hideyoshi , unified the nation in the early 1590s and launched two unsuccessful invasions of Korea in 1592 and 1597 . Tokugawa Ieyasu served as regent for Hideyoshi's son Toyotomi Hideyori and used his position to gain political and military support. When open war broke out, Ieyasu defeated rival clans in

14892-440: The form in which a city is built. If located on a mountainside, urban structures may rely on terraces and winding roads. It may be adapted to its means of subsistence (e.g. agriculture or fishing). And it may be set up for optimal defense given the surrounding landscape. Beyond these "geomorphic" features, cities can develop internal patterns, due to natural growth or to city planning . In a radial structure, main roads converge on

15038-415: The government and industrial corporations; as a result, environmental pollution was widespread in the 1950s and 1960s. Responding to rising concerns, the government introduced environmental protection laws in 1970. The oil crisis in 1973 also encouraged the efficient use of energy because of Japan's lack of natural resources. Japan ranks 20th in the 2018 Environmental Performance Index , which measures

15184-595: The government to Ravenna and Rome's population declined to a mere 20,000 during the Early Middle Ages , reducing the sprawling city to groups of inhabited buildings interspersed among large areas of ruins and vegetation. Baghdad was likely the largest city in the world from shortly after its foundation in 762 AD until the 930s, with some estimates putting its population at over one million. Chinese capital cities Chang'an and Kaifeng also experienced huge population booms during prosperous empires. According to

15330-633: The government to increase spending by 65% until 2027. Recent tensions, particularly with North Korea and China, have reignited the debate over the status of the JSDF and its relation to Japanese society. Domestic security in Japan is provided mainly by the prefectural police departments , under the oversight of the National Police Agency . As the central coordinating body for the Prefectural Police Departments,

15476-408: The high (75–85%) urbanization levels of North America and Western Europe . Since the 2000s, the largest megacity has been the Greater Tokyo Area . The population of this urban agglomeration includes areas such as Yokohama and Kawasaki , and is estimated to be between 37 and 38 million. This variation in estimates can be accounted for by different definitions of what the area encompasses. While

15622-800: The international community has prioritized investment in sustainable cities through Sustainable Development Goal 11 . Due to the efficiency of transportation and the smaller land consumption , dense cities hold the potential to have a smaller ecological footprint per inhabitant than more sparsely populated areas. Therefore, compact cities are often referred to as a crucial element in fighting climate change. However, this concentration can also have some significant negative consequences, such as forming urban heat islands , concentrating pollution , and stressing water supplies and other resources. A city can be distinguished from other human settlements by its relatively great size, but also by its functions and its special symbolic status , which may be conferred by

15768-472: The land surface of the Earth. Town siting has varied through history according to natural, technological, economic, and military contexts. Access to water has long been a major factor in city placement and growth, and despite exceptions enabled by the advent of rail transport in the nineteenth century, through the present most of the world's urban population lives near the coast or on a river. Urban areas as

15914-578: The largest earthquakes in its recorded history - the Tōhoku earthquake - triggering the Fukushima Daiichi nuclear disaster . On May 1, 2019, after the historic abdication of Emperor Akihito , his son Naruhito became Emperor, beginning the Reiwa era. Japan comprises 14,125 islands extending along the Pacific coast of Asia. It stretches over 3000 km (1900 mi) northeast–southwest from

16060-444: The least-urbanized continents, Asia and Africa . Surveys and projections indicate that all urban growth over the next 25 years will be in developing countries . One billion people, almost one-seventh of the world's population, now live in shanty towns . In many poor countries, overcrowded slums exhibit high rates of disease due to unsanitary conditions, malnutrition, and lack of basic health care. By 2030, over 2 billion people in

16206-475: The longest continual inhabitation . Cities, characterized by population density , symbolic function, and urban planning , have existed for thousands of years. In the conventional view, civilization and the city were both followed by the development of agriculture , which enabled the production of surplus food and thus a social division of labor (with concomitant social stratification ) and trade . Early cities often featured granaries , sometimes within

16352-625: The most developed state in Asia and as an industrialized world power that pursued military conflict to expand its sphere of influence. After victories in the First Sino-Japanese War (1894–1895) and the Russo-Japanese War (1904–1905), Japan gained control of Taiwan, Korea and the southern half of Sakhalin , and annexed Korea in 1910. The Japanese population doubled from 35 million in 1873 to 70 million by 1935, with

16498-497: The multi-millions, have proliferated into the dozens, arising especially in Asia, Africa, and Latin America. Economic globalization fuels the growth of these cities, as new torrents of foreign capital arrange for rapid industrialization, as well as the relocation of major businesses from Europe and North America, attracting immigrants from near and far. A deep gulf divides the rich and poor in these cities, which usually contain

16644-546: The name as Giapan in a translation of a 1565 Portuguese letter. Modern humans arrived in Japan around 38,000 years ago (~36,000 BC), marking the beginning of the Japanese Paleolithic . This was followed from around 14,500 BC (the start of the Jōmon period ) by a Mesolithic to Neolithic semi-sedentary hunter-gatherer culture characterized by pit dwelling and rudimentary agriculture. Clay vessels from

16790-565: The northern islands. Japan has over 90,000 species of wildlife as of 2019 , including the brown bear , the Japanese macaque , the Japanese raccoon dog , the small Japanese field mouse , and the Japanese giant salamander . There are 53 Ramsar wetland sites in Japan. Five sites have been inscribed on the UNESCO World Heritage List for their outstanding natural value. In the period of rapid economic growth after World War II, environmental policies were downplayed by

16936-982: The occupation , it resigned from the League of Nations in 1933. In 1936, Japan signed the Anti-Comintern Pact with Nazi Germany ; the 1940 Tripartite Pact made it one of the Axis powers . The Empire of Japan invaded other parts of China in 1937, precipitating the Second Sino-Japanese War (1937–1945). In 1940, the Empire invaded French Indochina , after which the United States placed an oil embargo on Japan. On December 7–8, 1941, Japanese forces carried out surprise attacks on Pearl Harbor , as well as on British forces in Malaya , Singapore , and Hong Kong , among others, beginning World War II in

17082-528: The period are among the oldest surviving examples of pottery. The Japonic -speaking Yayoi people entered the archipelago from the Korean Peninsula, intermingling with the Jōmon ; the Yayoi period saw the introduction of practices including wet-rice farming , a new style of pottery , and metallurgy from China and Korea. According to legend, Emperor Jimmu (descendant of Amaterasu ) founded

17228-519: The period of the Republic and later of the Empire , Rome was the largest , wealthiest, and most politically important city of the ancient world, rulling over Europe, Western Asia and Northern Africa. It is often stated that its population passed one million people by the end of the 1st century BC, however, its sometimes debated about whether the population actually reached such a large size. Rome's population started declining in 402 AD when Flavius Honorius , Western Roman Emperor from 395 to 423, moved

17374-598: The political, social, and economic arenas. People who live in slums or informal settlements often have minimal or no access to education, healthcare, or the urban economy. As with any large concentration of people, there is usually crime. High population densities often result in higher crime rates, as visibly seen in growing megacities such as Karachi , Delhi , Cairo , Rio de Janeiro , and Lagos . Megacities often have significant numbers of homeless people. The actual legal definition of homelessness varies from country to country, or among different entities or institutions in

17520-531: The populations. Another list defines megacities as urban agglomerations instead of metropolitan areas. As of 2021, there are 28 megacities by this definition, like Tokyo. Other sources list Nagoya and the Rhein-Ruhr as megacities. According to the United Nations, the proportion of urban dwellers living in slums or informal settlements decreased from 47 percent to 37 percent in the developing world between 1990 and 2005. However, due to rising population,

17666-631: The prefectures of Tokyo , Chiba , Kanagawa , and Saitama are commonly included in statistical information, the Japan Statistics Bureau only includes the area within 50 kilometers of the Tokyo Metropolitan Government Offices in Shinjuku , thus arriving at a smaller population estimate. A characteristic issue of megacities is the difficulty in defining their outer limits and accurately estimating

17812-582: The primary emissions to form photochemical smog . The sheer size and complexity of megacities gives rise to enormous social and environmental challenges. Whether megacities can develop sustainably depends to a large extent on how they obtain, share, and manage their energy and material resources. There are correlations between electricity consumption , heating and industrial fuel use, ground transportation energy use, water consumption , waste generation , and steel production in terms of level of consumption and how efficiently they use resources. Megacities are

17958-500: The public as well as forms of public land such as public domain and the commons . Western philosophy since the time of the Greek agora has considered physical public space as the substrate of the symbolic public sphere . Public art adorns (or disfigures) public spaces. Parks and other natural sites within cities provide residents with relief from the hardness and regularity of typical built environments . Urban green spaces are another component of public space that provides

18104-810: The rise of new great cities, first in Europe and then in other regions, as new opportunities brought huge numbers of migrants from rural communities into urban areas. England led the way as London became the capital of a world empire and cities across the country grew in locations strategic for manufacturing . In the United States from 1860 to 1910, the introduction of railroads reduced transportation costs, and large manufacturing centers began to emerge, fueling migration from rural to city areas. Some industrialized cities were confronted with health challenges associated with overcrowding , occupational hazards of industry, contaminated water and air, poor sanitation , and communicable diseases such as typhoid and cholera . Factories and slums emerged as regular features of

18250-423: The same country or region. In 2002, research showed that children and families were the largest growing segment of the homeless population in the United States, and this has presented new challenges, especially in services, to agencies. In the US, the government asked many major cities to come up with a ten-year plan to end homelessness. One of the results of this was a " Housing first " solution, rather than to have

18396-698: The same location as Tenochtitlan ; while ancient continuously inhabited Pueblos are near modern urban areas in New Mexico , such as Acoma Pueblo near the Albuquerque metropolitan area and Taos Pueblo near Taos ; while others like Lima are located nearby ancient Peruvian sites such as Pachacamac . From 1600 BC, Dhar Tichitt , in the south of present-day Mauritania , presented characteristics suggestive of an incipient form of urbanism. The second place to show urban characteristics in West Africa

18542-519: The study of Japan by the Japanese. The United States Navy sent Commodore Matthew C. Perry to force the opening of Japan to the outside world. Arriving at Uraga with four " Black Ships " in July 1853, the Perry Expedition resulted in the March 1854 Convention of Kanagawa . Subsequent similar treaties with other Western countries brought economic and political crises. The resignation of

18688-578: The suppression of individual rights . Japan's constitution prohibits racial and religious discrimination, and the country is a signatory to numerous international human rights treaties. However, it lacks any laws against discrimination based on race, ethnicity, religion, sexual orientation, or gender identity and does not have a national human rights institution. Japan has faced criticism for its gender inequality , not allowing same-sex marriages , use of racial profiling by police, and allowing capital punishment . Other human rights issues include

18834-568: The surrounding metropolitan regions following a massive earthquake in 2010. Fictional planet-wide megacities ( ecumenopoleis ) include Trantor in Isaac Asimov 's Foundation series of books and Coruscant (population two trillion) in the Star Wars universe. City Historically, city dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization , more than half of

18980-441: The term and has challenged geographers seeking to classify territories according to an urban-rural binary. Metropolitan areas include suburbs and exurbs organized around the needs of commuters , and sometimes edge cities characterized by a degree of economic and political independence. (In the US these are grouped into metropolitan statistical areas for purposes of demography and marketing .) Some cities are now part of

19126-550: The term was coined by urbanist Janice Perlman referring to the phenomenon of very large urban agglomerations. In 1800, only 3% of the world's population lived in cities, a figure that rose to 47% by the end of the twentieth century. In 1950, there were 83 cities with populations exceeding one million; by 2007, this number had risen to 468. The UN forecasts that today's urban population of 3.2 billion will rise to nearly 5 billion by 2030, when three out of five, or 60%, of people will live in cities. This increase will be most dramatic on

19272-403: The treatment of marginalized groups, such as ethnic minorities , refugees and asylum seekers . Japan has the world's fourth-largest economy by nominal GDP , after that of the United States, China and Germany; and the fifth-largest economy by PPP-adjusted GDP . As of 2021 , Japan's labor force is the world's eighth-largest , consisting of over 68.6 million workers. As of 2022 , Japan has

19418-412: The turn of the first millennium BC , encompassed numerous cities extending from Tyre , Cydon , and Byblos to Carthage and Cádiz . In the following centuries, independent city-states of Greece , especially Athens , developed the polis , an association of male landowning citizens who collectively constituted the city. The agora , meaning "gathering place" or "assembly", was the center of

19564-446: The urban landscape. In the second half of the 20th century, deindustrialization (or " economic restructuring ") in the West led to poverty , homelessness , and urban decay in formerly prosperous cities. America's "Steel Belt" became a " Rust Belt " and cities such as Detroit , Michigan, and Gary, Indiana began to shrink , contrary to the global trend of massive urban expansion. Such cities have shifted with varying success into

19710-589: The volume of sewage begins to exceed manageable levels. The local government of cities takes different forms including prominently the municipality (especially in England , in the United States , India , and other British colonies ; legally, the municipal corporation ; municipio in Spain and Portugal , and, along with municipalidad , in most former parts of the Spanish and Portuguese empires) and

19856-416: The world in 2019 for inbound tourism . The 2021 Travel and Tourism Competitiveness Report ranked Japan first in the world out of 117 countries. Its international tourism receipts in 2019 amounted to $ 46.1 billion. The Japanese agricultural sector accounts for about 1.2% of the country's total GDP as of 2018 . Only 11.5% of Japan's land is suitable for cultivation. Because of this lack of arable land,

20002-673: The world will be living in slums . Over 90% of the urban population of Ethiopia , Malawi and Uganda , three of the world's most rural countries, already live in slums. By 2025, Asia alone will have at least 30 megacities, including Mumbai , India (2015 population of 20.75 million people), Shanghai , China (2015 population of 35.5 million people), Delhi , India (2015 population of 21.8 million people), Tokyo , Japan (2015 population of 38.8 million people) and Seoul , South Korea (2015 population of 25.6 million people). In Africa, Lagos , Nigeria has grown from 300,000 in 1950 to an estimated 21 million today. For almost five hundred years, during

20148-523: The world's population lived in cities. The cultural appeal of cities also plays a role in attracting residents. Urbanization rapidly spread across Europe and the Americas and since the 1950s has taken hold in Asia and Africa as well. The Population Division of the United Nations Department of Economic and Social Affairs reported in 2014 that for the first time, more than half of the world population lives in cities. Latin America

20294-569: The world's strongest militaries . A developed country with one of the world's largest economies by nominal GDP , Japan is a global leader in science and technology and the automotive , robotics , and electronics industries . It has one of the world's highest life expectancies , though it is undergoing a population decline . Japan's culture is well known around the world, including its art , cuisine , film , music , and popular culture , which includes prominent comics , animation , and video game industries. The name for Japan in Japanese

20440-535: The world, while some others give the title to the Pearl River Delta in China. The term "megacity" entered common use in the late 19th or early 20th centuries; one of the earliest documented uses of the term was by the University of Texas in 1904. Initially the United Nations used the term to describe cities of 8 million or more inhabitants, but now uses the threshold of 10 million. In the mid 1970s

20586-543: Was Dia , in present-day Mali , from 800 BC. Both Dhar Tichitt and Dia were founded by the same people: the Soninke , who would later also found the Ghana Empire . Another ancient site, Jenné-Jeno , in what is today Mali , has been dated to the third century BCE. According to Roderick and Susan McIntosh, Jenné-Jeno did not fit into traditional Western conceptions of urbanity as it lacked monumental architecture and

20732-481: Was eventually overthrown by Emperor Go-Daigo . Go-Daigo was defeated by Ashikaga Takauji in 1336, beginning the Muromachi period (1336–1573). The succeeding Ashikaga shogunate failed to control the feudal warlords ( daimyō ) and a civil war began in 1467 , opening the century-long Sengoku period ("Warring States"). During the 16th century, Portuguese traders and Jesuit missionaries reached Japan for

20878-468: Was held by military dictators ( shōgun ) and feudal lords ( daimyō ), and enforced by warrior nobility ( samurai ). After rule by the Kamakura and Ashikaga shogunates and a century of warring states , Japan was unified in 1600 by the Tokugawa shogunate , which implemented an isolationist foreign policy . In 1853, a United States fleet forced Japan to open trade to the West , which led to

21024-508: Was recorded on July 23, 2018, and repeated on August 17, 2020. Japan has nine forest ecoregions which reflect the climate and geography of the islands. They range from subtropical moist broadleaf forests in the Ryūkyū and Bonin Islands , to temperate broadleaf and mixed forests in the mild climate regions of the main islands, to temperate coniferous forests in the cold, winter portions of

21170-419: Was the largest city in the world, with the population growing rapidly; it was the first city to reach a population of over 5 million in 1900. In 1950, New York City was the only urban area with a population of over 10 million. Geographers had identified 25 such areas as of October 2005, as compared with 19 megacities in 2004 and only nine in 1985. This increase has happened as the world's population moves towards

21316-431: Was the world's fifth-largest exporter and fourth-largest importer in 2022. Its exports amounted to 18.2% of its total GDP in 2021. As of 2022 , Japan's main export markets were China (23.9 percent, including Hong Kong) and the United States (18.5 percent). Its main exports are motor vehicles, iron and steel products, semiconductors, and auto parts. Japan's main import markets as of 2022 were China (21.1 percent),

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