Mike Green (racquetball)
Mike Green is a Canadian racquetball player from Burlington, Ontario. Green is former Canadian Champion in Men's Singles, winning his 11th title in 2017, which broke a tie he had with Sherman Greenfeld for most Men's Singles titles. Overall, Green has 21 Canadian Championships in Men's Singles and Doubles, the most for a Canadian man. Green's career high professional ranking was 8th at the end of the 2003-04 International Racquetball Tour season. Green's ranking is the highest by a Canadian player except for Kane Waselenchuk and fourth best for a non-American behind Waselenchuk and Mexicans Alvaro Beltran and Daniel De La Rosa. Green has reached the semi-finals of IRT Tier 1 or Grand Slam events seven times, those all occurred over the four season period from 2000-01 to 2003-04, when he was playing most of the IRT tournaments. Since he has only played a few tournaments each season and not gotten past the Round of 16. Green has made 28 appearances on Team Canada beginning in 1996, that's the most appearances by a Canadian men's player.
He's won gold medals thrice: in singles at the 2012 and 1999 Pan American Racquetball Championships and in doubles with Tim Landeryou at the 2010 Pan American Championships. Green was part of Team Canada that won the overall team title at the 2000 World Championships, the only time the USA has not won that title. In addition, Green earned medals on eight other occasions. Most Green and Vincent Gagnon won silver at the 2014 World Championships, his second silver at Worlds as he and Landeryou won silver at the 2010 World Championships. Green got silver at the 2003 Pan American Games in singles and at the 2002 World Championships in doubles with Mike Ceresia. Green finished with bronze medals from the Pan American Racquetball Championships in doubles in 2006 with Brian Istace and in 2011 with Kris Odegard and in singles in 2007. Green came home with bronze in doubles from both the 2002 World Championships and 2006 World Championships. Green represented Canada at the 2009 World Games. Green has been Canadian Men's Singles Champion 11 times.
His last title was in 2017, when he defeated Samuel Murray in Brossard, Québec, 12-15, 15-12, 12-10, in the final. Green won Men's Doubles in 2017, as he partnered with Trevor Webb, they beat Nicolas Bousquet and Tommy Murray in the final, 10-15, 16-14, 13-11. In 2016, Green defeated Tim Landeryou 15-8, in the final, his previous titles came in 2002, 2003, 2004, 2006, 2008, 2010, 2011, 2012, 2013 - and Doubles Champion eight times - in 2000 with Mike Ceresia, 2004 with Tom O'Brien, 2005-2007 with Brian Istace and 2010 and 2011 with Kris Odegard, 2013 with Coby Iwaasa. Green's 21 combined Canadian titles is second only to Jennifer Saunders's 22. Green has a Bachelor of Commerce degree from McMaster University
Rocky Carson is an American professional racquetball player. Carson is the current USA Racquetball National Doubles Champion and the reigning Pan Am Games Champion in Men's Singles. Carson’s a former World Champion in Men’s Singles - a title he’s won a record five times, he has been the season ending #1 player on the International Racquetball Tour twice, including in 2017-18. Carson has played outdoor racquetball, in 2008, he became the first man to win Men’s Singles at the World Outdoor Championship, as well as the indoor International Racquetball Federation World Championship, US Open. Carson played multiple sports as a boy, was good at several: baseball and tennis, but he had a passion for racquetball. That passion led to Carson playing a lot of racquetball as a junior, doing so quite successfully, he won Boy’s Singles in several age categories at the USA Racquetball Junior Olympics. Carson’s first title was in U10 in 1990. In 1992, he began a streak of five consecutive titles with a win in U12, followed by two U14 wins in 1993 and 1994, two wins in U16 in 1995 and 1996.
Carson’s final US junior title was a win in U18 in 1998. Carson won two US junior doubles titles in U18, he and Tyler Siggins won in 1997, he won with Josh Tucker in 1998. Carson successfully competed several times at the International Racquetball Federation World Junior Championships, he won Boy’s U16 Singles and Doubles in 1995. Carson won Boy’s U18 Singles three consecutive years: 1996-1998, becoming the second boy to do so after Sudsy Monchik. Carson attended Saddleback College, he competed for that school at the 1998 USA Racquetball Intercollegiate Championships, winning the Men’s #1 title. Carson played on Team USA for the first time at the 1998 Racquetball World Championships in Cochabamba, where he finished with a bronze medal in Men’s Singles, gold in the Men’s Team event. Carson was a quarterfinalist at the USAR 1998 National Doubles Championships in October 1998 in Baltimore, he and James Mulcock lost to Doug Ganim and Dan Obremski - a two time World Championship team, 15-7, 5-15, 11-7.
Ganim was complementary to Carson saying “We pretty much kept it away from Rocky, but when he got his racquet on it, he put it away about every time.”Carson began to play the International Racquetball Tour tournaments in the 1998-99 season. He’d played a few events in previous seasons - including the first US Open Racquetball Championships in 1996, when he lost to Michael Bronfeld in the Round of 32 - but in 98-99 he played most of the tournaments, finished 11th on tour. Carson reached a semi-final in that first season, when he lost to Sudsy Monchik in the semis in Rochester, New York; the following season, 1999-2000, Carson made the quarterfinals at the US Open for the first time, losing to Cliff Swain, 11-3, 11-8, 11-9. Carson’s second semi-final happened in his second season in Las Vegas, when he lost to John Ellis, 11-6, 11-5, 10-12, 11-5, he played in seven events in all, finished in the top 10 at the end of the season for the first time in 7th position. In 2000, Carson won the USA Racquetball National Singles Championship for the first time.
He was seeded 6th, defeated 8th seed Doug Eagle in the final. 15-7, 15-7. To reach the final, Carson beat Brian Fredenberg in the quarterfinals, 15-7, 15-13, Jack Huczek in the semi-finals, 15-11, 15-6, he played in Worlds for the 2nd time in San Luis Potosi and came home with two silver medals. He finished 2nd in Men’s Singles, as he lost the final to Mexican Alvaro Beltran, 15-10, 12-15, 11-6, the USA men were 2nd in the Men’s Team event. Carson and James Mulcock finished in the quarterfinals at the 2000 USAR National Doubles Championships in Baltimore, where they lost to Todd O’Neill and Derek Robinson, 15-11, 15-13. In 2000-2001, Carson reached two IRT finals. First in February 2001 at the Michael Lanning Pro-Am in Minneapolis, he beat Jack Huczek in the quarterfinals, John Ellis in the semi-finals, before losing to Monchik in the final, 12-10, 11-7, 11-5. At the Howard McKahand Memorial Pro-Am in Coral Springs, Carson reached the final by defeating Derek Robinson in the quarters, Swain in the semis, lost to final to Ellis, 11-9, 11-8, 10-12, 11-9.
He finished. Carson won the 2001 Pan American Racquetball Championships in San Pedro Sula, where he defeated Canadian Kane Waselenchuk in the final, 15-9, 15-13. Carson was the defending champion at the 2001 USAR National Singles Championships, had a chance to defend the title, but lost to Jack Huczek, 15-11, 15-6. Carson beat Dan Fowler in the semi-finals, 15-8, 15-10, to reach the final. Carson took a step back in 2001-2002, as he didn’t reach an IRT final, was only in one semi-final, which led to a season ending ranking of 7th, but in 2002-03, Carson won his first IRT event: the North Carolina Open in Greensboro in March 2003. Carson beat Swain in the quarterfinals, Mike Green in the semi-finals, Jason Mannino in the final, 13-11, 11-9, 11-3; the win helped. In 2003, Carson won his 2nd USA National Singles Championship, he had to come back from a game down, fight off match point in the tie-breaker to defeat Jack Huczek in the final, 6-15, 15-12, 11-10. The win qualified Carson as part of Team USA for the 2003 Pan American Games.
Carson competed in Men’s Singles at the 2003 Pan Am Games, finished with a bronze medal. He lost to team-mate Huczek in the semi-finals, 11-15, 15-12, 11-6; the two Americans were on the same side of the draw, as Carson lost one of his preliminary round matches to Canadian Mike Green, 15-14, 10-15, 11-9. Carson’s second IRT win happened about a year after his first, as he won the Kentucky Pro-A
A round-robin tournament is a competition in which each contestant meets all other contestants in turn. A round-robin contrasts with an elimination tournament, in which participants are eliminated after a certain number of losses; the term round-robin is derived from the French term ruban, meaning "ribbon". Over a long period of time, the term was idiomized to robin. In a single round-robin schedule, each participant plays every other participant once. If each participant plays all others twice, this is called a double round-robin; the term is used when all participants play one another more than twice, is never used when one participant plays others an unequal number of times. In the United Kingdom, a round-robin tournament is called an American tournament in sports such as tennis or billiards which have knockout tournaments. In Italian it is called girone all'italiana. In Serbian it is called the Berger system, after chess player Johann Berger. A round-robin tournament with four players is sometimes called "quad" or "foursome".
In sports with a large number of competitive matches per season, double round-robins are common. Most association football leagues in the world are organized on a double round-robin basis, in which every team plays all others in its league once at home and once away; this system is used in qualification for major tournaments such as the FIFA World Cup and the continental tournaments. There are round-robin bridge, draughts, go, curling and Scrabble tournaments; the World Chess Championship decided in 2005 and in 2007 on an eight-player double round-robin tournament where each player faces every other player once as white and once as black. Group tournaments rankings go by number of matches won and drawn, with any of a variety of tiebreaker criteria. Pool stages within a wider tournament are conducted on a round-robin basis. Examples with single round-robin scheduling include the FIFA World Cup, UEFA European Football Championship, UEFA Cup in football, Super Rugby in the Southern Hemisphere during its past iterations as Super 12 and Super 14, the Cricket World Cup along Pakistan Super League & Indian Premier League, the two major Twenty-20 Cricket tournaments, ] and many American Football college conferences, such as the Big 12.
The group phases of the UEFA Champions League and Copa Libertadores de América are contested as a double round-robin, as are most basketball leagues outside the United States, including the regular-season and Top 16 phases of the Euroleague. Season ending tennis tournaments use a round robin format prior to the semi on stages The champion, in a round-robin tournament, is the contestant that wins the most games. In the circle of death, it is possible that no champion emerges from a round-robin tournament if there is no draw. In theory, a round-robin tournament is the fairest way to determine the champion from among a known and fixed number of contestants; each contestant, whether player or team, has equal chances against all other opponents because there is no prior seeding of contestants that will preclude a match between any given pair. The element of luck is seen to be reduced as compared to a knockout system since one or two bad performances need not cripple a competitor's chance of ultimate victory.
Final records of participants are more accurate as they represent the results over a longer period against the same opposition. This can be used to determine which teams are the poorest performers and thus subject to relegation if the format is used in a multi-tiered league; this is helpful to determine the final rank of all competitors, from strongest to weakest, for purposes of qualification for another stage or competition as well as for prize money. In team sport the major league champions are regarded as the "best" team in the land, rather than the cup winners. Moreover, in tournaments such as the FIFA or ICC world cups, a first round stage consisting of a number of mini round robins between groups of 4 teams guards against the possibility of a team travelling thousands of miles only to be eliminated after just one poor performance in a straight knockout system; the top one, two, or three teams in these groups proceed to a straight knockout stage for the remainder of the tournament. Round-robins can suffer from being too long compared to other tournament types, with scheduled games not having any substantial meaning.
They may require tiebreaking procedures. Swiss system tournaments attempt to combine elements of the round-robin and elimination formats, to provide a worthy champion using fewer rounds than a round-robin, while allowing draws and losses; the main disadvantage of a round robin tournament is the time needed to complete it. Unlike a knockout tournament where half of the participants are eliminated after each round, a round robin requires one round less than the number of participants if the number of participants is and as many rounds as participants if the number of participants is odd. For instance, a tournament of 16 teams can be completed in just 4 rounds in a knockout format. Other issues
Mexico the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States. Covering 2,000,000 square kilometres, the nation is the fifth largest country in the Americas by total area and the 13th largest independent state in the world. With an estimated population of over 120 million people, the country is the eleventh most populous state and the most populous Spanish-speaking state in the world, while being the second most populous nation in Latin America after Brazil. Mexico is a federation comprising 31 states and Mexico City, a special federal entity, the capital city and its most populous city. Other metropolises in the state include Guadalajara, Puebla, Tijuana and León. Pre-Columbian Mexico dates to about 8000 BC and is identified as one of five cradles of civilization and was home to many advanced Mesoamerican civilizations such as the Olmec, Teotihuacan, Zapotec and Aztec before first contact with Europeans. In 1521, the Spanish Empire conquered and colonized the territory from its politically powerful base in Mexico-Tenochtitlan, administered as the viceroyalty of New Spain.
Three centuries the territory became a nation state following its recognition in 1821 after the Mexican War of Independence. The post-independence period was tumultuous, characterized by economic inequality and many contrasting political changes; the Mexican–American War led to a territorial cession of the extant northern territories to the United States. The Pastry War, the Franco-Mexican War, a civil war, two empires, the Porfiriato occurred in the 19th century; the Porfiriato was ended by the start of the Mexican Revolution in 1910, which culminated with the promulgation of the 1917 Constitution and the emergence of the country's current political system as a federal, democratic republic. Mexico has the 11th largest by purchasing power parity; the Mexican economy is linked to those of its 1994 North American Free Trade Agreement partners the United States. In 1994, Mexico became the first Latin American member of the Organisation for Economic Co-operation and Development, it is classified as an upper-middle income country by the World Bank and a newly industrialized country by several analysts.
The country is considered both a regional power and a middle power, is identified as an emerging global power. Due to its rich culture and history, Mexico ranks first in the Americas and seventh in the world for number of UNESCO World Heritage Sites. Mexico is an ecologically megadiverse country, ranking fourth in the world for its biodiversity. Mexico receives a huge number of tourists every year: in 2018, it was the sixth most-visited country in the world, with 39 million international arrivals. Mexico is a member of the United Nations, the World Trade Organization, the G8+5, the G20, the Uniting for Consensus group of the UN, the Pacific Alliance trade bloc. Mēxihco is the Nahuatl term for the heartland of the Aztec Empire, namely the Valley of Mexico and surrounding territories, with its people being known as the Mexica, it is believed to be a toponym for the valley which became the primary ethnonym for the Aztec Triple Alliance as a result, although it could have been the other way around.
In the colonial era, back when Mexico was called New Spain this territory became the Intendency of Mexico and after New Spain achieved independence from the Spanish Empire it came to be known as the State of Mexico with the new country being named after its capital: the City of Mexico, which itself was founded in 1524 on top of the ancient Mexica capital of Mexico-Tenochtitlan. Traditionally, the name Tenochtitlan was thought to come from Nahuatl tetl and nōchtli and is thought to mean "Among the prickly pears rocks". However, one attestation in the late 16th-century manuscript known as "the Bancroft dialogues" suggests the second vowel was short, so that the true etymology remains uncertain; the suffix -co is the Nahuatl locative, making the word a place name. Beyond that, the etymology is uncertain, it has been suggested that it is derived from Mextli or Mēxihtli, a secret name for the god of war and patron of the Mexica, Huitzilopochtli, in which case Mēxihco means "place where Huitzilopochtli lives".
Another hypothesis suggests that Mēxihco derives from a portmanteau of the Nahuatl words for "moon" and navel. This meaning might refer to Tenochtitlan's position in the middle of Lake Texcoco; the system of interconnected lakes, of which Texcoco formed the center, had the form of a rabbit, which the Mesoamericans pareidolically associated with the moon rabbit. Still another hypothesis suggests that the word is derived from Mēctli, the name of the goddess of maguey; the name of the city-state was transliterated to Spanish as México with the phonetic value of the letter x in Medieval Spanish, which represented the voiceless postalveolar fricative. This sound, as well as the voiced postalveolar fricative, represented by a j, evolved into a voiceless velar fricative during the 16th century; this led to the use of the variant Méjico in many publications in Spanish, most notably in Spain, whereas in Mexico and most other Spanish–speaking countries, México was the preferred spelling. In recent years, the Real Academia Española, which regulates the Spanish l
Ecuador the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, the Pacific Ocean to the west. Ecuador includes the Galápagos Islands in the Pacific, about 1,000 kilometres west of the mainland; the capital city is Quito, the largest city. What is now Ecuador was home to a variety of Amerindian groups that were incorporated into the Inca Empire during the 15th century; the territory was colonized by Spain during the 16th century, achieving independence in 1820 as part of Gran Colombia, from which it emerged as its own sovereign state in 1830. The legacy of both empires is reflected in Ecuador's ethnically diverse population, with most of its 16.4 million people being mestizos, followed by large minorities of European and African descendants. Spanish is the official language and is spoken by a majority of the population, though 13 Amerindian languages are recognized, including Quichua and Shuar; the sovereign state of Ecuador is a middle-income representative democratic republic with a developing economy, dependent on commodities, namely petroleum and agricultural products.
It is governed as a democratic presidential republic. One of 18 megadiverse countries in the world, Ecuador hosts many endemic plants and animals, such as those of the Galápagos Islands. In recognition of its unique ecological heritage, the new constitution of 2008 is the first in the world to recognize enforceable Rights of Nature, or ecosystem rights, it has the fifth lowest homicide rate in the Americas. Various peoples had settled in the area of the future Ecuador before the arrival of the Incas; the archeological evidence suggests that the Paleo-Indians' first dispersal into the Americas occurred near the end of the last glacial period, around 16,500–13,000 years ago. The first Indians who reached Ecuador may have journeyed by land from North and Central America or by boat down the Pacific Ocean coastline. Much migrations to Ecuador may have come via the Amazon tributaries, others descended from northern South America, others ascended from the southern part of South America through the Andes.
They developed different languages while emerging as unique ethnic groups. Though their languages were unrelated, these groups developed similar groups of cultures, each based in different environments; the people of the coast developed a fishing and gathering culture. Over time these groups began to interact and intermingle with each other so that groups of families in one area became one community or tribe, with a similar language and culture. Many civilizations arose in Ecuador, such as the Valdivia Culture and Machalilla Culture on the coast, the Quitus, the Cañari; each civilization developed its own distinctive architecture and religious interests. In the highland Andes mountains, where life was more sedentary, groups of tribes cooperated and formed villages. Through wars and marriage alliances of their leaders, a group of nations formed confederations. One region consolidated under a confederation called the Shyris, which exercised organized trading and bartering between the different regions.
Its political and military power came under the rule of the Duchicela blood-line. When the Incas arrived, they found that these confederations were so developed that it took the Incas two generations of rulers—Topa Inca Yupanqui and Huayna Capac—to absorb them into the Inca Empire; the native confederations that gave them the most problems were deported to distant areas of Peru and north Argentina. A number of loyal Inca subjects from Peru and Bolivia were brought to Ecuador to prevent rebellion. Thus, the region of highland Ecuador became part of the Inca Empire in 1463 sharing the same language. In contrast, when the Incas made incursions into coastal Ecuador and the eastern Amazon jungles of Ecuador, they found both the environment and indigenous people more hostile. Moreover, when the Incas tried to subdue them, these indigenous people withdrew to the interior and resorted to guerrilla tactics; as a result, Inca expansion into the Amazon Basin and the Pacific coast of Ecuador was hampered.
The indigenous people of the Amazon jungle and coastal Ecuador remained autonomous until the Spanish soldiers and missionaries arrived in force. The Amazonian people and the Cayapas of Coastal Ecuador were the only groups to resist Inca and Spanish domination, maintaining their language and culture well into the 21st century. Before the arrival of the Spaniards, the Inca Empire was involved in a civil war; the untimely death of both the heir Ninan Cuchi and the Emperor Huayna Capac, from a European disease that spread into Ecuador, created a power vacuum between two factions. The northern faction headed by Atahualpa claims that Huayna Capac gave a verbal decree before his death about how the empire should be divided, he gave the territories pertaining to present-day Ecuador and northern Peru to his favorite son Atahualpa, to rule from Quito. He willed that his heart be buried in Quito, his favorite city, the rest of his body be buried with his ancestors in Cuzco. Huáscar did not recognize his fa
Argentina the Argentine Republic, is a country located in the southern half of South America. Sharing the bulk of the Southern Cone with Chile to the west, the country is bordered by Bolivia and Paraguay to the north, Brazil to the northeast and the South Atlantic Ocean to the east, the Drake Passage to the south. With a mainland area of 2,780,400 km2, Argentina is the eighth-largest country in the world, the fourth largest in the Americas, the largest Spanish-speaking nation; the sovereign state is subdivided into twenty-three provinces and one autonomous city, Buenos Aires, the federal capital of the nation as decided by Congress. The provinces and the capital exist under a federal system. Argentina claims sovereignty over part of Antarctica, the Falkland Islands, South Georgia and the South Sandwich Islands; the earliest recorded human presence in modern-day Argentina dates back to the Paleolithic period. The Inca Empire expanded to the northwest of the country in Pre-Columbian times; the country has its roots in Spanish colonization of the region during the 16th century.
Argentina rose as the successor state of the Viceroyalty of the Río de la Plata, a Spanish overseas viceroyalty founded in 1776. The declaration and fight for independence was followed by an extended civil war that lasted until 1861, culminating in the country's reorganization as a federation of provinces with Buenos Aires as its capital city; the country thereafter enjoyed relative peace and stability, with several waves of European immigration radically reshaping its cultural and demographic outlook. The almost-unparalleled increase in prosperity led to Argentina becoming the seventh wealthiest nation in the world by the early 20th century. Following the Great Depression in the 1930s, Argentina descended into political instability and economic decline that pushed it back into underdevelopment, though it remained among the fifteen richest countries for several decades. Following the death of President Juan Perón in 1974, his widow, Isabel Martínez de Perón, ascended to the presidency, she was overthrown in 1976 by a U.
S.-backed coup which installed a right-wing military dictatorship. The military government persecuted and murdered numerous political critics and leftists in the Dirty War, a period of state terrorism that lasted until the election of Raúl Alfonsín as President in 1983. Several of the junta's leaders were convicted of their crimes and sentenced to imprisonment. Argentina is a prominent regional power in the Southern Cone and Latin America, retains its historic status as a middle power in international affairs. Argentina has the second largest economy in South America, the third-largest in Latin America, membership in the G-15 and G-20 major economies, it is a founding member of the United Nations, World Bank, World Trade Organization, Union of South American Nations, Community of Latin American and Caribbean States and the Organization of Ibero-American States. Despite its history of economic instability, it ranks second highest in the Human Development Index in Latin America; the description of the country by the word Argentina has been found on a Venetian map in 1536.
In English the name "Argentina" comes from the Spanish language, however the naming itself is not Spanish, but Italian. Argentina means in Italian " of silver, silver coloured" borrowed from the Old French adjective argentine " of silver" > "silver coloured" mentioned in the 12th century. The French word argentine is the feminine form of argentin and derives from argent "silver" with the suffix -in; the Italian naming "Argentina" for the country implies Terra Argentina "land of silver" or Costa Argentina "coast of silver". In Italian, the adjective or the proper noun is used in an autonomous way as a substantive and replaces it and it is said l'Argentina; the name Argentina was first given by the Venetian and Genoese navigators, such as Giovanni Caboto. In Spanish and Portuguese, the words for "silver" are plata and prata and " of silver" is said plateado and prateado. Argentina was first associated with the silver mountains legend, widespread among the first European explorers of the La Plata Basin.
The first written use of the name in Spanish can be traced to La Argentina, a 1602 poem by Martín del Barco Centenera describing the region. Although "Argentina" was in common usage by the 18th century, the country was formally named "Viceroyalty of the Río de la Plata" by the Spanish Empire, "United Provinces of the Río de la Plata" after independence; the 1826 constitution included the first use of the name "Argentine Republic" in legal documents. The name "Argentine Confederation" was commonly used and was formalized in the Argentine Constitution of 1853. In 1860 a presidential decree settled the country's name as "Argentine Republic", that year's constitutional amendment ruled all the names since 1810 as valid. In the English language the country was traditionally called "the Argentine", mimicking the typical Spanish usage la Argentina and resulting from a mistaken shortening of the fuller name'Argentine Republic'.'The Argentine' fell out of fashion during the mid-to-late 20th century, now the country is referred to as "Argentina".
In the Spanish language "Argentina" is feminine, taking the feminine article "La" as the i
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti