What “push factors” motivated Black people to leave the South in the 1870s?

The south even after they were freed after the war put very strict rules for black people. They weren't allowed to vote. They were allowed to vote in the north.

Explanation:

The blacks were given very strict laws in the south. Plus there were many jobs in the north for them. They went to the north by the millions.

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.