Adam: Haplogroup A

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By Michael Alan Prestwood

Sun 11 Jul 2021

Published 5 years ago.

Updated 4 months ago.

Adam: Haplogroup A

275,000 BCE

11,000 Generations Ago

All humans today share a single grandpa, circa 275,000 BCE. We know this because all humans alive today share our ancestor’s haplogroup A genes — from our Y chromosome. He was one of many thousands of men living in eastern Africa. Many paternal lines survived for many generations but ultimately over time all the other male lineages died out. Adam’s descendants met our Eve about 100,000 years later–about 4,000 generations later.

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Michael Alan Prestwood
Author & Natural Philosopher

Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.