Beringia
Beringia is defined today as the land and maritime area bounded on the west by the Lena River in Russia; on the east by the Mackenzie River in Canada; on the north by 72 degrees north latitude in the Chukchi Sea; and on the south by the tip of the Kamchatka Peninsula.[1] It includes the Chukchi Sea, the Bering Sea, the Bering Strait, the Chukchi and Kamchatka Peninsulas in Russia as well as Alaska in the United States and the Yukon in Canada.
This article is about the prehistoric land mass. For the battle of World War I in Beringia, Darfur, see Anglo-Egyptian Darfur Expedition § Battle of Beringia. For modern proposals to construct a connection over the Bering Strait, see Bering Strait crossing.
The area includes land lying on the North American Plate and Siberian land east of the Chersky Range. At various times, it formed a land bridge referred to as the Bering land bridge, that was up to 1,000 kilometres (620 miles) wide at its greatest extent and which covered an area as large as British Columbia and Alberta together,[2] totaling approximately 1,600,000 square kilometres (620,000 square miles), allowing biological dispersal to occur between Asia and North America. Today, the only land that is visible from the central part of the Bering land bridge are the Diomede Islands, the Pribilof Islands of St. Paul and St. George, St. Lawrence Island, St. Matthew Island, and King Island.[1]
It is believed that a small human population of at most a few thousand arrived in Beringia from eastern Siberia during the Last Glacial Maximum before expanding into the settlement of the Americas sometime after 16,500 years Before Present (YBP).[3] This would have occurred as the American glaciers blocking the way southward melted,[4][5][6][7][8] but before the bridge was covered by the sea about 11,000 YBP.[9][10]
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Etymology[edit]
The term Beringia was coined by the Swedish botanist Eric Hultén in 1937, from the Danish explorer Vitus Bering.[11] During the ice ages, Beringia, like most of Siberia and all of North and Northeast China, was not glaciated because snowfall was very light.[12]
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