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What is the reason for the early prolonged absence of humans in the Western Hemisphere?
Wiki User
∙ 8y ago
There was no way for humans to migrate there until the Ice Age made crossing the Bering Sea possible, when worldwide glaciation lowered the sea level.
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The Americas had already separated from the other continents at the time true humans appeared on the Earth, circa 60,000 to 200,000 years ago. It has long been believed that the spread of humans was from Africa to Asia to Europe, and was governed by the colder climates of the Ice Age. When sea levels fell during the last Ice Age, a land bridge existed from Asia through Siberia to North America (around 13,000 to 20,000 years ago). The descendants of Asian immigrants became the American Indian tribes.
However, there is some archaeological evidence that humans may have been in the Americas much earlier, as early as 50,000 years ago. Possible explanations include earlier-than-postulated sea voyages from Polynesia. Polynesians are thought to have traveled to South America in the 11th or 12 century AD, around the same time as early voyages to North America by Vikings from Europe.
Wiki User
∙ 8y ago
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Why did they immigrate to the US?
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The early prolonged absence of humans in the Western Hemisphere can be attributed to geographical barriers such as vast oceans that made long-distance travel challenging for ancient civilizations. Additionally, the lack of advanced navigation technology and seafaring skills likely limited early human migrations to the Western Hemisphere.
What is the basic reason for the early prolonged absence of humans in the western hemisphere is?
The early prolonged absence of humans in the western hemisphere is primarily attributed to geographical barriers, such as vast oceans, that limited travel and migration from other continents. This isolation led to the development of distinct ecosystems and cultures in the Americas before the arrival of European explorers.
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To date, fossil evidence shows that humans existed in the Western Hemisphere as far back as 10,000 BC BCE. There is also evidence of tools that also match the fossil remains.
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This person who wrote this is 100% wrong. Pangea was gone millions of years before this. The real way people got to the western hemisphere is the Earth temperature got much colder (ice age) and when water freezes it contracts. In doing so it exposed a strip of land called the bering strait which is how people crossed. Earths temperatures have heated up since then and it is no longer visible, but if we were to have another ice age it would be.
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Modern science supports the theory that humans in North and South America migrated from Asia across a land bridge that connected Alaska and Siberia. Because of a more simple culture among Native Americans, advanced ship building was never necessary, and therefore travel across the oceans was not possible.
