How long have humans been on the earth?
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While our ancestors have been around for about six million years, the modern form of humans only evolved about 200,000 years ago. Civilization as we know it is only about 6,000 years old, and industrialization started in the earnest only in the 1800s. read more
Source: universetoday.com
Modern humans have existed for roughly 200,000 years. The species to which humans belong, Homo sapiens, is the only species of human alive today. However, all species in the genus Homo are technically humans. read more
Source: reference.com
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History of Earth in 24-hour clock
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History of life on Earth
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How Long Have Humans Been On Earth?
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How Long Have Humans Been On Earth? The Big Question
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