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Portal:North America

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North America is a continent in the Northern and Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the south and west by the Pacific Ocean. The region includes Middle America (comprising the Caribbean, Central America, and Mexico) and Northern America.

North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of Earth's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the fourth-largest continent by population after Asia, Africa, and Europe. As of 2021, North America's population was estimated as over 592 million people in 23 independent states, or about 7.5% of the world's population. In human geography, the terms "North America" and "North American" refers to Canada, Greenland, Mexico, Saint Pierre and Miquelon, and the United States.

It is unknown with certainty how and when first human populations first reached North America. People were known to live in the Americas at least 20,000 years ago, but various evidence points to possibly earlier dates. The Paleo-Indian period in North America followed the Last Glacial Period, and lasted until about 10,000 years ago when the Archaic period began. The classic stage followed the Archaic period, and lasted from approximately the 6th to 13th centuries. Beginning in 1000 AD, the Norse were the first Europeans to begin exploring and ultimately colonizing areas of North America.

In 1492, the exploratory voyages of Christopher Columbus led to a transatlantic exchange, including migrations of European settlers during the Age of Discovery and the early modern period. Present-day cultural and ethnic patterns reflect interactions between European colonists, indigenous peoples, enslaved Africans, immigrants from Europe, Asia, and descendants of these respective groups. (Full article...)

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Boston is the capital and most populous city in the Commonwealth of Massachusetts in the United States. The city serves as the cultural and financial center of New England, a region of the Northeastern United States. It has an area of 48.4 sq mi (125 km2) and a population of 675,647 as of the 2020 census, making it the third-largest city in the Northeastern United States after New York City and Philadelphia. The larger Greater Boston metropolitan statistical area has a population of 4.9 million as of 2023, making it the largest metropolitan area in New England and the eleventh-largest in the United States.

Boston was founded on Shawmut Peninsula in 1630 by English Puritan settlers, who named the city after the market town of Boston, Lincolnshire in England. During the American Revolution and Revolutionary War, Boston was home to several seminal events, including the Boston Massacre (1770), the Boston Tea Party (1773), Paul Revere's midnight ride (1775), the Battle of Bunker Hill (1775), and the Siege of Boston (1775–1776). (Full article...)

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Map of southern Nevada showing Area 51
Map of southern Nevada showing Area 51
Credit: Finlay McWalter
The US Federal Government controls a 6,000 sq mi (16,000 km2) tract of southern Nevada, including the Nellis Air Force Range and the Nevada Test Site. These contain the Yucca Mountain repository, the Tonopah Test Range, and the secret Area 51 facility.
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Emperor Norton, c. 1871–72

Joshua Abraham Norton (February 4, 1818 – January 8, 1880) was a resident of San Francisco, California, who in 1859 declared himself "Emperor of these United States" in a proclamation that he signed "Norton I., Emperor of the United States". Commonly known as Emperor Norton, he took the secondary title "Protector of Mexico" in 1866.

Born in England and raised in South Africa, Norton left Cape Town in late 1845, sailing from Liverpool to Boston in early 1846 and eventually arriving in San Francisco in late 1849. After a brief period of prosperity, Norton made a business gambit in late 1852 that played out poorly, ultimately forcing him to declare bankruptcy in 1856. (Full article...)

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A pair at the San Francisco Zoo in 2005

The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). The river otter is protected and insulated by a thick, water-repellent coat of fur.

The North American river otter, a member of the subfamily Lutrinae in the weasel family (Mustelidae), is equally versatile in the water and on land. It establishes a burrow close to the water's edge in river, lake, swamp, coastal shoreline, tidal flat, or estuary ecosystems. The den typically has many tunnel openings, one of which generally allows the otter to enter and exit the body of water. Female North American river otters give birth in these burrows, producing litters of one to six young. (Full article...)

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Calico Jack

  • ... that the Chontal Maya of Tabasco consider themselves the direct descendants of the Olmec civilization?

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Air pollution over the City of Los Angeles
Air pollution over the City of Los Angeles
Credit: Diliff
Los Angeles is the second-largest city in the United States, with an estimated population of 3.85 million people. Los Angeles is one of the cultural, economic, scientific and entertainment centers of the country.

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