But the masses did not pour out of the South until they had something to go to. They got their chance when the North began courting them, hard and in secret, in the face of southern hostility, during the labor crisis of World War I. Word had spread like wildfire that the North was finally “opening up.” The war had cut the supply of European workers the North had relied on to kill its hogs and stoke its foundries. Immigration plunged by more than ninety percent, from 1,218,480 in 1914 to 110,618 in 1918, when the country needed all the labor it could get for war production.
