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Map of the Position of the U.S. Geographic Center of Area, Mean Center of Population, and Median Center of Population, 2020 (U.S. Census Bureau) [1] The geographic center of the United States is a point approximately 20 miles (32 km) north of Belle Fourche , South Dakota at 44°58′2.07622″N 103°46′17.60283″W / 44.9672433944°N ...
The exact geographic center of the U.S. Virgin Islands is unknown — the default center starting point for the U.S. Virgin Islands on Google Maps is located in the Caribbean Sea, [15] 18.21 miles (29.30 km) south-southeast of Saint Thomas and 18.31 miles (29.47 km) north of Saint Croix — note that this point is the approximate center of the ...
Alaska, the last major acquisition in North America, was purchased from Russia in 1867. Support for the independence of Cuba from the Spanish Empire, and the sinking of the USS Maine, led to the Spanish–American War in 1898, in which the United States gained Puerto Rico, Guam, and the Philippines, and occupied Cuba for several years.
The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan, a Continental Army aide to General George Washington, wrote to Joseph Reed, Washington's aide-de-camp, seeking to go "with full and ample powers from the United States of America to Spain" to seek assistance in the Revolutionary War effort.
In North America, the greatest number of fourteeners are in the United States, and more specifically in the US state of Colorado. The highest peaks of the Americas are located in the Andes, with Aconcagua of Argentina being the highest; in North America Denali (Mount McKinley) in the US state of Alaska is the tallest.
The West Coast of the continental United States makes up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes. [28] The American Northwest sees the highest concentration of active volcanoes in the United States, in Washington , Oregon and northern California along ...
Islands generally associated with North America include Greenland, the world's largest island, and archipelagos and islands in the Caribbean. The terminology of the Americas is complex, but " Anglo-America " can describe Canada and the U.S., while " Latin America " comprises Mexico and the countries of Central America and the Caribbean , as ...
Map of early human migrations based on the Out of Africa theory; figures are in thousands of years ago (kya). [2]The peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the ...