However, the colonization never became permanent and was later abandoned. The first known European settlement in the Americas was by the Norse explorer Leif Erikson. The subsequent migration of the Inuit into the neoarctic around 3500 BCE completed what is generally regarded as the settlement by the indigenous peoples of the Americas. A second migration of Na-Dene speakers followed later from Asia. Humans first settled the Americas from Asia between 20,000 and 16,000 years ago. Since the Americas extend 14,000 km (8,700 mi) from north to south, the climate and ecology vary widely, from the arctic tundra of Northern Canada, Greenland, and Alaska, to the tropical rain forests in Central America and South America. Lawrence River– Great Lakes basin, Mississippi, and La Plata. The flatter eastern side of the Americas is dominated by large river basins, such as the Amazon, St. The topography is dominated by the American Cordillera, a long chain of mountains that runs the length of the west coast. Īlong with their associated islands, the Americas cover 8% of Earth's total surface area and 28.4% of its land area. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. The Americas (sometimes collectively called America) are a landmass comprising the totality of North and South America. 1990s CIA political map of the Americas in Lambert azimuthal equal-area projection
0 kommentar(er)
