The Great Migration was a mass exodus organized by no one and chosen by millions

Wilkerson opens by establishing scale and framing: over roughly six decades starting around 1915, close to six million Black Americans left the South for cities in the North, Midwest, and West, a movement larger than many recognized immigrations to the United States, yet one lacking any central organization, government sponsorship, or coordinated leadership. It unfolded instead as millions of individual, often desperate decisions made by people responding to similar pressures — violence, economic exploitation, and the daily degradations of Jim Crow.

Wilkerson insists on calling it a migration rather than simply relocation, deliberately borrowing the vocabulary usually reserved for movements across national borders, to convey that Black Southerners were essentially fleeing a hostile regime for what amounted to another country within their own nation's borders. This framing sets up her argument that the scale and consequence of this movement rival any other mass migration in American history, despite receiving far less sustained historical attention.

Takeaway: some of history's largest movements aren't organized from the top — they're the accumulated weight of millions of individual, unconnected decisions.