FIRST CONTACTS 28000 BCE 1821 CE
PRE COLUMBIAN AMERICA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They were here all along
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By boat
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Through a land bridge connecting northeast Asia and Alaska
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Through a land bridge connecting Africa and South America
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Detailed explanation-1: -The settlement of the Americas began when Paleolithic hunter-gatherers 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 Last Glacial Maximum (26, 000 to 19, 000 years ago).
Detailed explanation-2: -By far the oldest and most widely accepted of these theories is the Bering land bridge migration model. This theory posits that during the last ice age (approximately 50, 000-10, 000 BPE), humans were able to migrate from Siberia to Alaska over land.
Detailed explanation-3: -There has long been a debate among scholars about the origins of the first inhabitants of North America. The most widely accepted theory is that sometime before 14, 000 years ago, humans migrated from Siberia to Alaska by means of a “land bridge” that spanned the Bering Strait.
Detailed explanation-4: -The most commonly held is the Bering Land Bridge Theory. This has been at the forefront for over 50 years. Basically, the idea is that during the last ice age, about 20, 000 years ago (or a little less), lower water levels created a frozen bridge of land.
Detailed explanation-5: -The Bering Land Bridge Theory-Bering Land Bridge National Preserve (U.S. National Park Service)