How could all races have come from one person?

i'm not sure why you'd think difficult imagine. modern humans around 99.9% same. differences between so-called 'races' boil down handful of genes out of 23,000 genes in human genome. there might big differences between various groups of people today based on various historical, economic , social contingencies; these variations have nothing aspect of human evolution. there more overall variation within populations between populations - human races differ around 0.02% of genome. notice differences because many of them literally 'skin deep'.

3,000 years ago in europe living @ same level of social , technological complexity people in africa, asia , americas - hunters , gatherers, , small farmers living in villages of huts made stone , grass. it's not groups of humans have been demonstrating remarkable abilities others didn't have, or radically different lifestyle, tens of thousands of years. variation in economic growth , development has occurred in last 2,000 years , of that, in last 300 years. these insignificant periods of time in evolutionary terms, given modern humans have existed around 200,000 years.

indeed there no human 'races' @ until around 70,000 years ago, when small groups of modern humans began migrate north out of africa. long after time when modern humans started expand out small set of breeding pairs. genetic research has shown humans alive today descended single woman lived in africa around 150,000 years ago - so-called mitochondrial eve. put way: every human alive on planet today cousin, in degree.

in summary: yes share common ancestor, every race has same great-great-great-etc-grandmother.

hope helps.


edit: c_kayak nice endorsement; it's appreciated.

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