Jazz & blues migrated north in the African-American diaspora at the turn of the century

Louisiana's Leadbelly in NYC
Originally uploaded by trudeau

Between 1910 and 1930, the African American population grew by about 40% in Northern states, mostly in the major cities, says Wikipedia.

Jazz and blues music traveled north, too.

Cities such as Chicago, Detroit, New York, and Cleveland had some of the biggest increases in the early part of the century. Because changes were concentrated in cities, urban tensions rose as African Americans and new or recent European immigrants, both groups chiefly from rural societies, competed for jobs and housing with the white ethnic working class. Tensions were often most severe between ethnic Irish, defending their positions, and recent immigrants and blacks.

African Americans moved as individuals or small family groups. There was no government assistance, but often northern industries, such as the railroads, meatpacking and stockyards, recruited people. The primary factor for migration was the racial climate and widespread violence of lynching in the South. In the North, they could find better schools and adult men could vote (joined by women after 1920). Burgeoning industries meant there were job opportunities.

1. African-Americans left to escape the discrimination and racial segregation of late 19th century constitutions and Jim Crow laws.
2. The boll weevil infestation of Southern cotton fields in the late 1910s forced many sharecroppers and laborers to search for alternative employment opportunities.
3. The enormous expansion of war industries created job openings for blacks—not in the factories but in service jobs vacated by new factory workers.
4. World War I and the Immigration Act of 1924 effectively put a halt to the flow of European immigrants to the emerging industrial centers of the Northeast and Midwest, causing shortages of workers in the factories.

vocab -

exodus - mass exit
diaspora - ethnic mass migration

A diaspora (in Greek, διασπορά – "a scattering [of seeds]") is the movement or migration of a group of people, such as those sharing a national and/or ethnic identity, away from an established or ancestral homeland. When capitalized, the Diaspora refers to the exile of the Jewish people and Jews living outside ancient or modern day Israel.