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112-593: Initially the work of the BIPM concerned the kilogram and the metre , but in 1921 the scope of the Metre Convention was extended to accommodate all physical measurements and hence all aspects of the metric system . In 1960 the 11th CGPM approved the title International System of Units , usually known as "SI". The General Conference receives the report of the CIPM on work accomplished; it discusses and examines

224-617: A revision in November 2018 that defines the kilogram by defining the Planck constant to be exactly 6.626 070 15 × 10  kg⋅m ⋅s , effectively defining the kilogram in terms of the second and the metre. The new definition took effect on 20 May 2019. Prior to the redefinition, the kilogram and several other SI units based on the kilogram were defined by a man-made metal artifact: the Kilogramme des Archives from 1799 to 1889, and

336-577: A stock corporation . The BIPM is the organisation, the CGPM is the general meeting of the shareholders, the CIPM is the board of directors appointed by the CGPM, and the staff at the site in Saint-Cloud perform the day-to-day work. The CGPM recognises two classes of membership – full membership for those states that wish to participate in the activities of the BIPM and associate membership for those countries or economies that only wish to participate in

448-516: A union of the current territories of Colombia, Panama, Ecuador, Venezuela, parts of Guyana and Brazil and north of Marañón River . The Congress of Cúcuta in 1821 adopted a constitution for the new Republic. Simón Bolívar became the first President of Colombia , and Francisco de Paula Santander was made Vice President . However, the new republic was unstable and the Gran Colombia ultimately collapsed. Modern Colombia comes from one of

560-630: A cylinder composed of platinum–iridium , the International Prototype of the Kilogram (IPK), became the standard of the unit of mass for the metric system and remained so for 130 years, before the current standard was adopted in 2019 . The kilogram is defined in terms of three defining constants: The formal definition according to the General Conference on Weights and Measures (CGPM) is: The kilogram, symbol kg,

672-526: A decline in population due to conquest as well as Eurasian diseases, such as smallpox , to which they had no immunity. Regarding the land as deserted, the Spanish Crown sold properties to all persons interested in colonized territories, creating large farms and possession of mines. In the 16th century, the nautical science in Spain reached a great development thanks to numerous scientific figures of

784-563: A different nationality. elected by the General Conference on Weights and Measures (CGPM) whose principal task is to promote worldwide uniformity in units of measurement by taking direct action or by submitting proposals to the CGPM. The CIPM meets every year (since 2011 in two sessions per year) at the Pavillon de Breteuil where, among other matters, it discusses reports presented to it by its Consultative Committees. Reports of

896-656: A kilogram is 1   mg (one milligram), not 1   μkg (one microkilogram). Colombia Colombia , officially the Republic of Colombia , is a country primarily located in South America with insular regions in North America . The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuela to the east and northeast, Brazil to the southeast, Ecuador and Peru to

1008-489: A mass measurement instrument such as a Kibble balance as a primary standard for the kilogram mass. The kilogram was originally defined in 1795 during the French Revolution as the mass of one litre of water . The current definition of a kilogram agrees with this original definition to within 30 parts per million . In 1799, the platinum Kilogramme des Archives replaced it as the standard of mass. In 1889,

1120-460: A member of the CIPM. Apart from the CCU, membership of a CC is open to National Metrology Institutes ( NMIs ) of Member States that are recognized internationally as most expert in the field. NMIs from Member States that are active in the field, but lack the expertise to become Members, are able to attend CC meetings as observers. These committees are: The CCU's role is to advise on matters related to

1232-428: A new Constitution was promulgated. The changes generated by the new constitution are viewed as positive by Colombian society. The administration of President Álvaro Uribe (2002–2010) adopted the democratic security policy which included an integrated counter-terrorism and counter-insurgency campaign. The government economic plan also promoted confidence in investors. As part of a controversial peace process,

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1344-431: A number of controversies, the democratic security policy has ensured that former President Álvaro Uribe remained popular among Colombian people, with his approval rating peaking at 76%, according to a poll in 2009. However, having served two terms, he was constitutionally barred from seeking re-election in 2010. In the run-off elections on 20 June 2010 the former Minister of Defense Juan Manuel Santos won with 69% of

1456-460: A permanent laboratory and secretariat function (sometimes referred to as the Headquarters), the activities of which include the establishment of the basic standards and scales of the principal physical quantities and maintenance of the international prototype standards. The CGPM acts on behalf of the governments of its members. In so doing, it elects members to the CIPM, receives reports from

1568-817: A population of around 52 million. Its rich cultural heritage —including language, religion, cuisine, and art—reflects its history as a colony, fusing cultural elements brought by immigration from Europe and the Middle East , with those brought by the African diaspora , as well as with those of the various Indigenous civilizations that predate colonization. Spanish is the official language , although Creole, English and 64 other languages are recognized regionally. Colombia has been home to many indigenous peoples and cultures since at least 12,000 BCE. The Spanish first landed in La Guajira in 1499, and by

1680-624: A republic—the current Republic of Colombia—in 1886. With the backing of the United States and France, Panama seceded from Colombia in 1903, resulting in Colombia's present borders. Beginning in the 1960s, the country has suffered from an asymmetric low-intensity armed conflict and political violence, both of which escalated in the 1990s. Since 2005, there has been significant improvement in security, stability, and rule of law, as well as unprecedented economic growth and development. Colombia

1792-447: A weight measurement to a mass and therefore require precise measurement of the strength of gravity in laboratories ( gravimetry ). All approaches would have precisely fixed one or more constants of nature at a defined value. Because an SI unit may not have multiple prefixes (see SI prefix ), prefixes are added to gram , rather than the base unit kilogram , which already has a prefix as part of its name. For instance, one-millionth of

1904-494: A written specification. At the 94th Meeting of the CIPM in 2005, it was recommended that the same be done with the kilogram. In October 2010, the CIPM voted to submit a resolution for consideration at the General Conference on Weights and Measures (CGPM), to "take note of an intention" that the kilogram be defined in terms of the Planck constant , h (which has dimensions of energy times time, thus mass × length / time) together with other physical constants. This resolution

2016-541: Is approximately 7 times bigger. Colombia has about 2,000 species of marine fish and is the second most diverse country in freshwater fish . It is also the country with the most endemic species of butterflies , is first in orchid species, and has approximately 7,000 species of beetles . Colombia is second in the number of amphibian species and is the third most diverse country in reptiles and palms . There are about 1,900 species of mollusks and according to estimates there are about 300,000 species of invertebrates in

2128-462: Is characterized for being tropical presenting variations within six natural regions and depending on the altitude, temperature, humidity , winds and rainfall. Colombia has a diverse range of climate zones, including tropical rainforests , savannas , steppes , deserts and mountain climates. Mountain climate is one of the unique features of the Andes and other high altitude reliefs where climate

2240-655: Is described as "a common informal name" on Russ Rowlett's Dictionary of Units of Measurement. When the United States Congress gave the metric system legal status in 1866, it permitted the use of the word kilo as an alternative to the word kilogram , but in 1990 revoked the status of the word kilo . The SI system was introduced in 1960 and in 1970 the BIPM started publishing the SI Brochure , which contains all relevant decisions and recommendations by

2352-476: Is determined by elevation. Below 1,000 meters (3,281 ft) in elevation is the warm altitudinal zone , where temperatures are above 24 °C (75.2 °F). About 82.5% of the country's total area lies in the warm altitudinal zone. The temperate climate altitudinal zone located between 1,001 and 2,000 meters (3,284 and 6,562 ft) is characterized for presenting an average temperature ranging between 17 and 24 °C (62.6 and 75.2 °F). The cold climate

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2464-408: Is present between 2,001 and 3,000 meters (6,565 and 9,843 ft) and the temperatures vary between 12 and 17 °C (53.6 and 62.6 °F). Beyond lies the alpine conditions of the forested zone and then the treeless grasslands of the páramos . Above 4,000 meters (13,123 ft), where temperatures are below freezing, the climate is glacial , a zone of permanent snow and ice. Colombia is one of

2576-628: Is recognized for its healthcare system , being the best healthcare in Latin America according to the World Health Organization and 22nd in the world. Its diversified economy is the third-largest in South America, with macroeconomic stability and favorable long-term growth prospects. Colombia is one of the world's seventeen megadiverse countries ; it has the highest level of biodiversity per square mile in

2688-619: Is the base unit of mass in the International System of Units (SI), having the unit symbol kg . 'Kilogram' means 'one thousand grams ' and is colloquially abbreviated to kilo . The kilogram is an SI base unit , defined ultimately in terms of three defining constants of the SI, namely a specific transition frequency of Cs, the speed of light, and the Planck constant. A properly equipped metrology laboratory can calibrate

2800-400: Is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 × 10 when expressed in the unit J⋅s, which is equal to kg⋅m ⋅s , where the metre and the second are defined in terms of c and Δ ν Cs . Defined in term of those units, the kg is formulated as: This definition is generally consistent with previous definitions:

2912-478: Is the sixth country in the world by magnitude of total renewable freshwater supply, and still has large reserves of freshwater. The government of Colombia takes place within the framework of a presidential participatory democratic republic as established in the Constitution of 1991. In accordance with the principle of separation of powers , government is divided into three branches: the executive branch,

3024-614: The AUC (right-wing paramilitaries) had ceased to function formally as an organization . In February 2008, millions of Colombians demonstrated against FARC and other outlawed groups. After peace negotiations in Cuba , the Colombian government of President Juan Manuel Santos and the guerrillas of the FARC-EP announced a final agreement to end the conflict. However, a referendum to ratify

3136-672: The Alliance for Progress . Despite the progress in certain sectors, many social and political problems continued, and guerrilla groups were formally created such as the FARC , the ELN and the M-19 to fight the government and political apparatus. Since the 1960s, the country has suffered from an asymmetric low-intensity armed conflict between government forces , leftist guerrilla groups and right wing paramilitaries . The conflict escalated in

3248-586: The Amazon basin . The war ended with a peace deal brokered by the League of Nations . The League finally awarded the disputed area to Colombia in June 1934. Soon after, Colombia achieved some degree of political stability, which was interrupted by a bloody conflict that took place between the late 1940s and the early 1950s, a period known as La Violencia ("The Violence"). Its cause was mainly mounting tensions between

3360-527: The Amazon rainforest . Together these lowlands make up over half Colombia's territory, but they contain less than 6% of the population. To the north the Caribbean coast , home to 21.9% of the population and the location of the major port cities of Barranquilla and Cartagena , generally consists of low-lying plains, but it also contains the Sierra Nevada de Santa Marta mountain range, which includes

3472-644: The Andean Community ; it is also a NATO Global Partner and a major non-NATO ally of the United States . The name "Colombia" is derived from the last name of the Italian navigator Christopher Columbus ( Latin : Christophorus Columbus , Italian : Cristoforo Colombo , Spanish: Cristóbal Colón ). It was conceived as a reference to all of the New World. The name was later adopted by

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3584-714: The Andes and Amazon basin . The oldest archaeological finds are from the Pubenza and El Totumo sites in the Magdalena Valley 100 kilometers (62 mi) southwest of Bogotá. These sites date from the Paleoindian period (18,000–8000 BCE). At Puerto Hormiga and other sites, traces from the Archaic Period (~8000–2000 BCE) have been found. Vestiges indicate that there was also early occupation in

3696-526: The CGPM concerning units. The SI Brochure states that "It is not permissible to use abbreviations for unit symbols or unit names ...". For use with east Asian character sets, the SI symbol is encoded as a single Unicode character, U+338F ㎏ SQUARE KG in the CJK Compatibility block. The replacement of the International Prototype of the Kilogram (IPK) as the primary standard

3808-695: The Casa de Contratación and nautical science was an essential pillar of the Iberian expansion . In 1542, the region of New Granada, along with all other Spanish possessions in South America, became part of the Viceroyalty of Peru , with its capital in Lima . In 1547, New Granada became a separate captaincy-general within the viceroyalty, with its capital at Santa Fe de Bogota. In 1549, the Royal Audiencia

3920-517: The Congress , a bicameral institution comprising a 166-seat Chamber of Representatives and a 102-seat Senate . The Senate is elected nationally and the Chamber of Representatives is elected in electoral districts. Members of both houses are elected to serve four-year terms two months before the president, also by popular vote. The judicial branch is headed by four high courts , consisting of

4032-529: The International system of units . The brochure is produced by the CCU in conjunction with a number of other international organisations. Initially the brochure was only in French – the official language of the metre convention, but recent versions have been published simultaneously in both English and French, with the French text being the official text. The 6th edition was published in 1991, the 7th edition

4144-687: The Llanos Orientales and went over the Cordillera Oriental in a search for El Dorado , the "city of gold". The legend and the gold would play a pivotal role in luring the Spanish and other Europeans to New Granada during the 16th and 17th centuries. The conquistadors made frequent alliances with the enemies of different indigenous communities. Indigenous allies were crucial to conquest, as well as to creating and maintaining empire. Indigenous peoples in Colombia experienced

4256-613: The Magdalena River Valley. A site including eight miles (13 km) of pictographs that is under study at Serranía de la Lindosa was revealed in November 2020. Their age is suggested as being 12,500 years old (c. 10,480 B.C.) by the anthropologists working on the site, because of extinct fauna depicted. It was during the earliest known human occupation of the area. Between 5000 and 1000 BCE, hunter-gatherer tribes transitioned to agrarian societies; fixed settlements were established, and pottery appeared. Beginning in

4368-720: The Pacific Coastal region; the Caribbean coastal region; the Llanos (plains); the Amazon rainforest region; to the insular area , comprising islands in both the Atlantic and Pacific oceans. It shares its maritime limits with Costa Rica , Nicaragua , Honduras , Jamaica , Haiti , and the Dominican Republic . Colombia is bordered to the northwest by Panama , to the east by Venezuela and Brazil, and to

4480-706: The Président de l'Académie des Sciences de Paris . Of the twenty countries that attended the Conference of the Metre in 1875, representatives of seventeen signed the convention on 20 May 1875. In April 1884, H. J. Chaney, Warden of Standards in London unofficially contacted the BIPM inquiring whether the BIPM would calibrate some metre standards that had been manufactured in the United Kingdom. Broch , director of

4592-511: The Republic of Colombia of 1819, formed from the territories of the old Viceroyalty of New Granada (modern-day Colombia, Panama, Venezuela, Ecuador, and northwest Brazil). When Venezuela, Ecuador, and Cundinamarca came to exist as independent states, the former Department of Cundinamarca adopted the name " Republic of New Granada ". New Granada officially changed its name in 1858 to the Granadine Confederation . In 1863

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4704-810: The Supreme Court which deals with penal and civil matters, the Council of State , which has special responsibility for administrative law and also provides legal advice to the executive, the Constitutional Court , responsible for assuring the integrity of the Colombian constitution, and the Superior Council of Judicature , responsible for auditing the judicial branch. Colombia operates a system of civil law , which since 1991 has been applied through an adversarial system . Despite

4816-560: The mass remains within 30 ppm of the mass of one litre of water. The kilogram is the only base SI unit with an SI prefix ( kilo ) as part of its name. The word kilogramme or kilogram is derived from the French kilogramme , which itself was a learned coinage, prefixing the Greek stem of χίλιοι khilioi "a thousand" to gramma , a Late Latin term for "a small weight", itself from Greek γράμμα . The word kilogramme

4928-569: The megadiverse countries in biodiversity , ranking first in bird species . Colombia is the country with the planet's highest biodiversity, having the highest rate of species by area as well as the largest number of endemisms (species that are not found naturally anywhere else) of any country. About 10% of the species of the Earth live in Colombia, including over 1,900 species of bird, more than in Europe and North America combined. Colombia has 10% of

5040-492: The 1200s, Malayo-Polynesians and Native Americans in Colombia made contact, thereby spreading Native American genetics from Precolonial Colombia to some Pacific Ocean islands. Alonso de Ojeda (who had sailed with Columbus) reached the Guajira Peninsula in 1499. Spanish explorers, led by Rodrigo de Bastidas , made the first exploration of the Caribbean coast in 1500. Christopher Columbus navigated near

5152-426: The 1990s, mainly in remote rural areas. Since the beginning of the armed conflict, human rights defenders have fought for the respect for human rights, despite staggering opposition. Several guerrillas' organizations decided to demobilize after peace negotiations in 1989–1994. The United States has been heavily involved in the conflict since its beginnings, when in the early 1960s the U.S. government encouraged

5264-793: The 1st millennium BCE, groups of Amerindians including the Muisca , Zenú , Quimbaya , and Tairona developed the political system of cacicazgos with a pyramidal structure of power headed by caciques . The Muisca inhabited mainly the area of what is now the Departments of Boyacá and Cundinamarca high plateau ( Altiplano Cundiboyacense ) where they formed the Muisca Confederation . They farmed maize, potato, quinoa, and cotton, and traded gold, emeralds , blankets, ceramic handicrafts, coca and especially rock salt with neighboring nations. The Tairona inhabited northern Colombia in

5376-1059: The 21st meeting of the CGPM in October 1999, the category of "associate" was created for states not yet BIPM members and for economic unions . Albania (2007) Azerbaijan (2015) Bangladesh (2010) Bolivia (2008) Bosnia and Herzegovina (2011) Botswana (2012) Cambodia (2021) Caribbean Community (2005) Chinese Taipei (2002) Ethiopia (2018) Georgia (2008) Ghana (2009) Hong Kong (2000) Jamaica (2003) Kuwait (2018) Latvia (2001) Luxembourg (2014) Malta (2001) Mauritius (2010) Moldova (2007) Mongolia (2013) Namibia (2012) North Macedonia (2006) Oman (2012) Panama (2003) Paraguay (2009) Peru (2009) Philippines (2002) Qatar (2016) Sri Lanka (2007) Syria (2012) Tanzania (2018) Uzbekistan (2018) Vietnam (2003) Zambia (2010) Zimbabwe (2010–2020, 2022) Cuba (2000–2021) Seychelles (2010–2021) Sudan (2014–2021) The International Committee for Weights and Measures consists of eighteen persons, each of

5488-1848: The BIPM replied that he was not authorised to perform any such calibrations for non-member states. On 17 September 1884, the British Government signed the convention on behalf of the United Kingdom. This number grew to 21 in 1900, 32 in 1950, and 49 in 2001. As of 18 November 2022, there are 64 Member States and 36 Associate States and Economies of the General Conference (with year of partnership in parentheses): Argentina (1877) Australia (1947) Austria (1875) Belarus (2020) Belgium (1875) Brazil (1921) Bulgaria (1911) Canada (1907) Chile (1908) China (1977) Colombia (2012) Costa Rica (2022) Croatia (2008) Czech Republic (1922) Denmark (1875) Ecuador (2019) Egypt (1962) Estonia (2021) Finland (1913) France (1875) Germany (1875) Greece (2001) Hungary (1925) India (1880) Indonesia (1960) Iran (1975) Iraq (2013) Ireland (1925) Israel (1985) Italy (1875) Japan (1885) Kazakhstan (2008) Kenya (2010) Lithuania (2015) Malaysia (2001) Mexico (1890) Montenegro (2018) Morocco (2019) Netherlands (1929) New Zealand (1991) Norway (1875) Pakistan (1973) Poland (1925) Portugal (1876) Romania (1884) Russia (1875) Saudi Arabia (2011) Serbia (2001) Singapore (1994) Slovakia (1922) Slovenia (2016) South Africa (1964) South Korea (1959) Spain (1875) Sweden (1875) Switzerland (1875) Thailand (1912) Tunisia (2012) Turkey (1875) Ukraine (2018) United Arab Emirates (2015) United Kingdom (1884) United States (1878) Uruguay (1908) Cameroon (1970–2012) Dominican Republic (1954–2015) North Korea (1982–2012) Peru (1875–1956) Venezuela (1879–1907, 1960–2018) At

5600-494: The CGPM took place from 18 to 20 November 2014, the 26th meeting of the CGPM took place in Versailles from 13 to 16 November 2018, and the 27th meeting of the CGPM took place from 15 to 18 November 2022. On 20 May 1875 an international treaty known as the Convention du Mètre ( Metre Convention ) was signed by 17 states. This treaty established an international organisation, the Bureau international des poids et mesures (BIPM), which has two governing organs: The organization has

5712-431: The CIPM MRA program. Associate members have observer status at the CGPM. Since all formal liaison between the convention organisations and national governments is handled by the member state's ambassador to France, it is implicit that member states must have diplomatic relations with France, though during both world wars, nations that were at war with France retained their membership of the CGPM. CGPM meetings are chaired by

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5824-407: The CIPM include: From time to time the CIPM has been charged by the CGPM to undertake major investigations related to activities affecting the CGPM or the BIPM. Reports produced include: The Blevin Report , published in 1998, examined the state of worldwide metrology. The report originated from a resolution passed at the 20th CGPM (October 1995) which committed the CIPM to study and report on

5936-408: The CIPM which it passes on to the governments and national laboratories on member states, examines and where appropriate approves proposals from the CIPM in respect of changes to the International System of Units (SI), approves the budget for the BIPM (over €13 million in 2018) and it decides all major issues concerning the organization and development of the BIPM. The structure is analogous to that of

6048-438: The Caribbean in 1502. In 1508, Vasco Núñez de Balboa accompanied an expedition to the territory through the region of Gulf of Urabá and they founded the town of Santa María la Antigua del Darién in 1510, the first stable settlement on the continent. Santa Marta was founded in 1525, and Cartagena in 1533. Spanish conquistador Gonzalo Jiménez de Quesada led an expedition to the interior in April 1536, and christened

6160-490: The Colombian Conservative Party and the Colombian Liberal Party agreed to create the National Front , a coalition that would jointly govern the country. Under the deal, the presidency would alternate between conservatives and liberals every 4 years for 16 years; the two parties would have parity in all other elective offices. The National Front ended "La Violencia", and National Front administrations attempted to institute far-reaching social and economic reforms in cooperation with

6272-461: The Colombian Declaration of Independence, issued on 20 July 1810, the day that is now celebrated as the nation's Independence Day. This movement followed the independence of Saint-Domingue (present-day Haiti) in 1804, which provided some support to an eventual leader of this rebellion: Simón Bolívar . Francisco de Paula Santander also would play a decisive role. A movement was initiated by Antonio Nariño , who opposed Spanish centralism and led

6384-478: The Colombian military to attack leftist militias in rural Colombia. This was part of the U.S. fight against communism. Mercenaries and multinational corporations such as Chiquita Brands International are some of the international actors that have contributed to the violence of the conflict. Beginning in the mid-1970s Colombian drug cartels became major producers, processors and exporters of illegal drugs , primarily marijuana and cocaine . On 4 July 1991,

6496-525: The Cordillera Central and Cordillera Oriental they reach 5,000 m (16,404 ft). At 2,600 m (8,530 ft), Bogotá is the highest city of its size in the world. The main rivers of Colombia are Magdalena, Cauca, Guaviare , Atrato , Meta , Putumayo and Caquetá . Colombia has four main drainage systems: the Pacific drain, the Caribbean drain, the Orinoco Basin and the Amazon Basin. The Orinoco and Amazon Rivers mark limits with Colombia to Venezuela and Peru respectively. The climate of Colombia

6608-424: The French word kilo , a shortening of kilogramme , was imported into the English language where it has been used to mean both kilogram and kilometre. While kilo as an alternative is acceptable, to The Economist for example, the Canadian government's Termium Plus system states that "SI (International System of Units) usage, followed in scientific and technical writing" does not allow its usage and it

6720-416: The IPK from 1889 to 2019. In 1960, the metre , previously similarly having been defined with reference to a single platinum-iridium bar with two marks on it, was redefined in terms of an invariant physical constant (the wavelength of a particular emission of light emitted by krypton , and later the speed of light ) so that the standard can be independently reproduced in different laboratories by following

6832-426: The Philippines, the source of Asian products like silk and porcelain which was in demand in the Americas. Illegal trade between Peruvians, Filipinos, and Mexicans continued in secret, as smuggled Asian goods ended up in Córdoba, Colombia , the distribution center for illegal Asian imports, due to the collusion between these peoples against the authorities in Spain. They settled and traded with each other while disobeying

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6944-431: The Spanish Crown. To protect the indigenous peoples, several forms of land ownership and regulation were established by the Spanish colonial authorities: resguardos , encomiendas and haciendas . However, secret anti-Spanish discontentment was already brewing for Colombians since Spain prohibited direct trade between the Viceroyalty of Peru , which included Colombia, and the Viceroyalty of New Spain , which included

7056-408: The Venezuelan-born Simón Bolívar , who finally proclaimed independence in 1819. The pro-Spanish resistance was defeated in 1822 in the present territory of Colombia and in 1823 in Venezuela. During the Independence War, between 250 and 400 thousand people (12–20% of the pre-war population) died. The territory of the Viceroyalty of New Granada became the Republic of Colombia , organized as

7168-485: The area (especially the Panama Canal construction and control) led to the separation of the Department of Panama in 1903 and the establishment of it as a nation. The United States paid Colombia $ 25,000,000 in 1921, seven years after completion of the canal, for redress of President Roosevelt 's role in the creation of Panama, and Colombia recognized Panama under the terms of the Thomson–Urrutia Treaty . Colombia and Peru went to war because of territory disputes far in

7280-471: The armed conflict and to satisfy victims' right to justice . During his visit to Colombia, Pope Francis paid tribute to the victims of the conflict. In June 2018, Iván Duque , the candidate of the right-wing Democratic Center party, won the presidential election . On 7 August 2018, he was sworn in as the new President of Colombia to succeed Juan Manuel Santos. Colombia's relations with Venezuela have fluctuated due to ideological differences between

7392-443: The arrangements required to ensure the propagation and improvement of the International System of Units (SI); it endorses the results of new fundamental metrological determinations and various scientific resolutions of international scope; and it decides all major issues concerning the organization and development of the BIPM, including its financial endowment. The CGPM meets in Paris, usually once every four years. The 25th meeting of

7504-495: The bipartisan political forces, occasionally igniting very bloody civil wars, the most significant being the Thousand Days' War (1899–1902), in which between 100 and 180 thousand Colombians lost their lives when the Liberal Party , supported by Venezuela , Ecuador , Nicaragua , and Guatemala rebelled against the Nationalist government and took control of Santander , ultimately being defeated in 1902 by nationalist forces. The United States of America's intentions to influence

7616-431: The city of Cali ; the Cordillera Central , running between the Cauca and Magdalena River valleys (to the west and east, respectively) and including the cities of Medellín , Manizales , Pereira , and Armenia ; and the Cordillera Oriental , extending northeast to the Guajira Peninsula and including Bogotá, Bucaramanga , and Cúcuta . Peaks in the Cordillera Occidental exceed 4,700 m (15,420 ft), and in

7728-456: The city, but, after achieving initial inroads, devastating outbreaks of disease crippled their numbers, and the British were forced to withdraw. The battle became one of Spain's most decisive victories in the conflict, and secured Spanish dominance in the Caribbean until the Seven Years' War . The 18th-century priest, botanist, and mathematician José Celestino Mutis was delegated by Viceroy Antonio Caballero y Góngora to conduct an inventory of

7840-442: The countries that emerged after the dissolution of Gran Colombia , the other two being Ecuador and Venezuela. Colombia was the first constitutional government in South America, and the Liberal and Conservative parties, founded in 1848 and 1849, respectively, are two of the oldest surviving political parties in the Americas. Slavery was abolished in the country in 1851. Internal political and territorial divisions led to

7952-406: The country's legitimate president. In January 2020, Colombia rejected Maduro's proposal that the two countries restore diplomatic relations. Protests started on 28 April 2021 when the government proposed a tax bill that would greatly expand the range of the 19 percent value-added tax . The 19 June 2022 election run-off vote ended in a win for former guerrilla, Gustavo Petro , taking 50.47% of

8064-603: The country's tallest peaks ( Pico Cristóbal Colón and Pico Simón Bolívar ), and the La Guajira Desert . By contrast the narrow and discontinuous Pacific coastal lowlands , backed by the Serranía de Baudó mountains, are sparsely populated and covered in dense vegetation. The principal Pacific port is Buenaventura . Part of the Ring of Fire , a region of the world subject to earthquakes and volcanic eruptions , in

8176-491: The country. In Colombia there are 32 terrestrial biomes and 314 types of ecosystems . Protected areas and the "National Park System" cover an area of about 14,268,224 hectares (142,682.24 km ) and account for 12.77% of the Colombian territory. Compared to neighboring countries, rates of deforestation in Colombia are still relatively low. Colombia had a 2018 Forest Landscape Integrity Index mean score of 8.26/10, ranking it 25th globally out of 172 countries. Colombia

8288-751: The deal was unsuccessful. Afterward, the Colombian government and the FARC signed a revised peace deal in November 2016, which the Colombian congress approved. In 2016, President Santos was awarded the Nobel Peace Prize . The Government began a process of attention and comprehensive reparation for victims of conflict. Colombia shows modest progress in the struggle to defend human rights, as expressed by HRW . A Special Jurisdiction of Peace has been created to investigate, clarify, prosecute and punish serious human rights violations and grave breaches of international humanitarian law which occurred during

8400-413: The development of the SI and the preparation of the SI brochure. It has liaison with other international bodies such as International Organization for Standardization (ISO) , International Astronomical Union (IAU) , International Union of Pure and Applied Chemistry (IUPAC) , International Union of Pure and Applied Physics (IUPAP) and International Commission on Illumination (CIE) . Official reports of

8512-456: The dissolution of Gran Colombia in 1830. The so-called " Department of Cundinamarca " adopted the name " New Granada ", which it kept until 1858 when it became the "Confederación Granadina" ( Granadine Confederation ). After a two-year civil war in 1863, the United States of Colombia was created, which became known as the Republic of Colombia in 1886. Internal divisions remained between

8624-591: The districts through which he passed " New Kingdom of Granada ". In August 1538, he provisionally founded its capital near the Muisca cacicazgo of Muyquytá , and named it "Santa Fe". The name soon acquired a suffix and was called Santa Fe de Bogotá. Two other notable journeys by early conquistadors to the interior took place in the same period. Sebastián de Belalcázar , conqueror of Quito , traveled north and founded Cali , in 1536, and Popayán , in 1537; from 1536 to 1539, German conquistador Nikolaus Federmann crossed

8736-458: The expedition as the astronomer Francisco José de Caldas , the scientist Francisco Antonio Zea , the zoologist Jorge Tadeo Lozano and the painter Salvador Rizo . Rebellions against Spanish rule had occurred in the empire since the advent of conquest and colonization, but most were either crushed or remained too weak to change the overall situation. The last one that sought outright independence from Spain sprang up around 1810 and culminated in

8848-503: The forced Spanish monopoly. The Viceroyalty of New Granada was established in 1717, then temporarily removed, and then re-established in 1739. Its capital was Santa Fé de Bogotá. This Viceroyalty included some other provinces of northwestern South America that had previously been under the jurisdiction of the Viceroyalties of New Spain or Peru and correspond mainly to today's Venezuela, Ecuador, and Panama. Bogotá became one of

8960-597: The interior of Colombia the Andes are the prevailing geographical feature. Most of Colombia's population centers are located in these interior highlands. Beyond the Colombian Massif (in the southwestern departments of Cauca and Nariño ), these are divided into three branches known as cordilleras (mountain ranges): the Cordillera Occidental , running adjacent to the Pacific coast and including

9072-741: The isolated mountain range of Sierra Nevada de Santa Marta . The Quimbaya inhabited regions of the Cauca River Valley between the Western and Central Ranges of the Colombian Andes. Most of the Amerindians practiced agriculture and the social structure of each indigenous community was different. Some groups of indigenous people such as the Caribs lived in a state of permanent war, but others had less bellicose attitudes. During

9184-528: The legislative branch and the judicial branch. As the head of the executive branch, the President of Colombia serves as both head of state and head of government , followed by the Vice President and the Council of Ministers . The president is elected by popular vote to serve a single four-year term (In 2015, Colombia's Congress approved the repeal of a 2004 constitutional amendment that changed

9296-637: The long-term national and international needs relating to metrology, the appropriate international collaborations and the unique role of the BIPM to meet these needs, and the financial and other commitments that will be required from the Member States in the coming decades. The report identified, amongst other things, a need for closer cooperation between the BIPM and other organisations such as International Organization of Legal Metrology (OIML) and International Laboratory Accreditation Cooperation (ILAC) with clearly defined boundaries and interfaces between

9408-614: The meetings of the CGPM, the CIPM, and all the Consultative Committees, are published by the BIPM. The secretariat is based in Saint-Cloud , Hauts-de-Seine , France . In 1999, the CIPM has established the CIPM Arrangement de reconnaissance mutuelle (Mutual Recognition Arrangement, MRA), which serves as the framework for the mutual acceptance of national measurement standards and for recognition of

9520-635: The mid-16th century, they had colonized much of present-day Colombia, and established the New Kingdom of Granada , with Santa Fé de Bogotá as its capital. Independence from the Spanish Empire was achieved in 1819, with what is now Colombia emerging as the United Provinces of New Granada . The new polity experimented with federalism as the Granadine Confederation (1858) and then the United States of Colombia (1863), before becoming

9632-408: The name was again changed, this time to United States of Colombia , before finally adopting its present name – the Republic of Colombia – in 1886. To refer to this country, the Colombian government uses the terms Colombia and República de Colombia . Owing to its location, the present territory of Colombia was a corridor of early human civilization from Mesoamerica and the Caribbean to

9744-630: The nature of New Granada. Started in 1783, this became known as the Royal Botanical Expedition to New Granada . It classified plants and wildlife, and founded the first astronomical observatory in the city of Santa Fe de Bogotá. In July 1801 the Prussian scientist Alexander von Humboldt reached Santa Fe de Bogotá where he met with Mutis. In addition, historical figures in the process of independence in New Granada emerged from

9856-420: The one-term limit for presidents to a two-term limit). At the provincial level executive power is vested in department governors , municipal mayors and local administrators for smaller administrative subdivisions, such as corregimientos or comunas . All regional elections are held one year and five months after the presidential election. The legislative branch of government is represented nationally by

9968-563: The opposition against the Viceroyalty . Cartagena became independent in November 1811. In 1811, the United Provinces of New Granada were proclaimed, headed by Camilo Torres Tenorio . The emergence of two distinct ideological currents among the patriots ( federalism and centralism ) gave rise to a period of instability called the Patria Boba . Shortly after the Napoleonic Wars ended, Ferdinand VII , recently restored to

10080-414: The organisations. Another major finding was the need for cooperation between accreditation laboratories and the need to involve developing countries in the world of metrology. The Kaarls Report published in 2003 examined the role of the BIPM in the evolving needs for metrology in trade, industry and society. The CIPM has responsibility for commissioning the SI brochure, which is the formal definition of

10192-465: The principal administrative centers of the Spanish possessions in the New World, along with Lima and Mexico City , though it remained less developed compared to those two cities in several economic and logistical ways. Great Britain declared war on Spain in 1739, and the city of Cartagena quickly became a top target for the British. A massive British expeditionary force was dispatched to capture

10304-634: The regions of El Abra and Tequendama in Cundinamarca . The oldest pottery discovered in the Americas, found in San Jacinto , dates to 5000–4000 BCE. Indigenous people inhabited the territory that is now Colombia by 12,500 BCE. Nomadic hunter-gatherer tribes at the El Abra, Tibitó and Tequendama sites near present-day Bogotá traded with one another and with other cultures from

10416-500: The reproducible production of new, kilogram-mass prototypes on demand (albeit with extraordinary effort) using measurement techniques and material properties that are ultimately based on, or traceable to, physical constants. Others were based on devices that measured either the acceleration or weight of hand-tuned kilogram test masses and that expressed their magnitudes in electrical terms via special components that permit traceability to physical constants. All approaches depend on converting

10528-532: The south and southwest, the Pacific Ocean to the west, and Panama to the northwest. Colombia is divided into 32 departments . The Capital District of Bogotá is also the country's largest city hosting the main financial and cultural hub. Other major urban areas include Medellín , Cali , Barranquilla , Cartagena , Santa Marta , Cúcuta , Ibagué , Villavicencio and Bucaramanga . It covers an area of 1,141,748 square kilometers (440,831 sq mi) and has

10640-587: The south by Ecuador and Peru ; it established its maritime boundaries with neighboring countries through seven agreements on the Caribbean Sea and three on the Pacific Ocean. It lies between latitudes 12°N and 4°S and between longitudes 67° and 79°W . East of the Andes lies the savanna of the Llanos , part of the Orinoco River basin, and in the far southeast, the jungle of

10752-424: The throne in Spain, unexpectedly decided to send military forces to retake most of northern South America. The viceroyalty was restored under the command of Juan de Sámano , whose regime punished those who participated in the patriotic movements, ignoring the political nuances of the juntas . The retribution stoked renewed rebellion, which, combined with a weakened Spain, made possible a successful rebellion led by

10864-861: The two governments. Colombia has offered humanitarian support with food and medicines to mitigate the shortage of supplies in Venezuela. Colombia's Foreign Ministry said that all efforts to resolve Venezuela's crisis should be peaceful. Colombia proposed the idea of the Sustainable Development Goals and a final document was adopted by the United Nations. In February 2019, Venezuelan president Nicolás Maduro cut off diplomatic relations with Colombia after Colombian President Ivan Duque had helped Venezuelan opposition politicians deliver humanitarian aid to their country. Colombia recognized Venezuelan opposition leader Juan Guaidó as

10976-652: The two leading political parties, which subsequently ignited after the assassination of the Liberal presidential candidate Jorge Eliécer Gaitán on 9 April 1948. The ensuing riots in Bogotá, known as El Bogotazo , spread throughout the country and claimed the lives of at least 180,000 Colombians. Colombia entered the Korean War when Laureano Gómez was elected president. It was the only Latin American country to join

11088-450: The validity of calibration and measurement certificates issued by national metrology institutes. A recent focus area of the CIPM has been the revision of the SI . The CIPM has set up a number of consultative committees (CC) to assist it in its work. These committees are under the authority of the CIPM. The president of each committee, who is expected to take the chair at CC meetings, is usually

11200-400: The vote against the second most popular candidate, Antanas Mockus . A second round was required since no candidate received over the 50% winning threshold of votes. Santos won re-election with nearly 51% of the vote in second-round elections on 15 June 2014, beating right-wing rival Óscar Iván Zuluaga , who won 45%. In 2018, Iván Duque won in the second round of the election with 54% of

11312-432: The vote compared to 47.27% for independent candidate Rodolfo Hernández . The single-term limit for the country's presidency prevented President Iván Duque from seeking re-election. On 7 August 2022, Petro was sworn in, becoming the country's first leftist president. The geography of Colombia is characterized by its six main natural regions that present their unique characteristics, from the Andes mountain range region;

11424-417: The war in a direct military role as an ally of the United States. Particularly important was the resistance of the Colombian troops at Old Baldy . The violence between the two political parties decreased first when Gustavo Rojas deposed the President of Colombia in a coup d'état and negotiated with the guerrillas, and then under the military junta of General Gabriel París . After Rojas' deposition,

11536-717: The world and the second-highest level overall. Its territory encompasses Amazon rainforest , highlands , grasslands and deserts . It is the only country in South America with coastlines (and islands) along both the Atlantic and Pacific oceans. Colombia is a key member of major global and regional organizations including the UN , the WTO , the OECD , the OAS , the Pacific Alliance and

11648-421: The world's mammals species, 14% of the amphibian species and 18% of the bird species of the world. As for plants, the country has between 40,000 and 45,000 plant species , equivalent to 10 or 20% of total global species, which is even more remarkable given that Colombia is considered a country of intermediate size. Colombia is the second most biodiverse country in the world, lagging only after Brazil which

11760-567: Was accepted by the 24th conference of the CGPM in October 2011 and further discussed at the 25th conference in 2014. Although the Committee recognised that significant progress had been made, they concluded that the data did not yet appear sufficiently robust to adopt the revised definition, and that work should continue to enable the adoption at the 26th meeting, scheduled for 2018. Such a definition would theoretically permit any apparatus that

11872-520: Was adopted in Great Britain when the word was used for the first time in English in 1795, with the spelling kilogram being adopted in the United States. In the United Kingdom both spellings are used, with "kilogram" having become by far the more common. UK law regulating the units to be used when trading by weight or measure does not prevent the use of either spelling. In the 19th century

11984-410: Was capable of delineating the kilogram in terms of the Planck constant to be used as long as it possessed sufficient precision, accuracy and stability. The Kibble balance is one way to do this. As part of this project, a variety of very different technologies and approaches were considered and explored over many years. Some of these approaches were based on equipment and procedures that would enable

12096-530: Was created by a royal decree, and New Granada was ruled by the Royal Audience of Santa Fe de Bogotá , which at that time comprised the provinces of Santa Marta, Rio de San Juan, Popayán, Guayana and Cartagena. But important decisions were taken from the colony to Spain by the Council of the Indies . In the 16th century, European slave traders had begun to bring enslaved Africans to the Americas. Spain

12208-574: Was motivated by evidence accumulated over a long period of time that the mass of the IPK and its replicas had been changing; the IPK had diverged from its replicas by approximately 50 micrograms since their manufacture late in the 19th century. This led to several competing efforts to develop measurement technology precise enough to warrant replacing the kilogram artefact with a definition based directly on physical fundamental constants. The International Committee for Weights and Measures (CIPM) approved

12320-465: Was published in 1998, and the 8th, in 2006. The most recent edition is the 9th edition, originally published as version 1 in 2019 to include the 2019 revision of the SI (a.k.a. "new SI"); it was updated to version 2 in December 2022 to include the new SI prefixes ronna- , quetta- , ronto- and quecto- introduced in November 2022. Kilogram The kilogram (also spelled kilogramme )

12432-564: Was the only European power that did not establish factories in Africa to purchase slaves; the Spanish Empire instead relied on the asiento system, awarding merchants from other European nations the license to trade enslaved peoples to their overseas territories. This system brought Africans to Colombia, although many spoke out against the institution. The indigenous peoples could not be enslaved because they were legally subjects of

12544-580: Was written into French law in 1795, in the Decree of 18 Germinal , which revised the provisional system of units introduced by the French National Convention two years earlier, where the gravet had been defined as weight ( poids ) of a cubic centimetre of water, equal to 1/1000 of a grave . In the decree of 1795, the term gramme thus replaced gravet , and kilogramme replaced grave . The French spelling

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