This is the short, citation-free version of the How We Spread Across the Earth arc — the three-part story of how our species, born on a single continent, came to stand on all of them. It compresses those three entries — The African Dawn (#0016), Out of Africa (#0017), and Into the New World (#0018) — into one self-contained narrative.
For readers who want to dig in, the detailed entries — #0003 through #0010 — remain in the corpus, with the references, the disputed claims, and the working uncertainties intact.
This is the short story of how you came to be. Not how you, personally — though that comes into it at the end. How any human being came to exist, as the kind of animal we are, on the kind of planet we live on, in the kind of universe that contains us.