The Bantu Expansion

c. 1000 BCE — Africa, Bantu-speaking peoples

Today: From Cameroon across central and southern Africa

Over roughly three thousand years, farming peoples speaking related languages moved out of what is now Cameroon and Nigeria and spread across most of Africa south of the Sahara, carrying yams, cattle, and iron. They did not march; they drifted, generation by generation, clearing forest and settling. The evidence is written in language: some five hundred Bantu tongues, from Swahili to Zulu to Shona, are related closely enough that linguists can reconstruct the parent they descend from. It is one of the largest movements of people in human history and it left no conquest to remember.

Worth knowing: Roughly one in three Africans today speaks a Bantu language, and the family is so tightly related that a speaker of one can often catch the shape of another — the linguistic fingerprint of a migration that finished before Rome fell.

Pattern: Migration pressure — Large movements of peoples — pushed or pulled — reshape the societies they leave and the ones they enter.

Entry 26 of 240 in Precedent, a walk through the whole human story in order.