What did the federal government do to prevent Black Codes?

Explanation:

After the United States Civil War, state governments that had been part of the Confederacy tried to limit the voting rights of black citizens and prevent contact between black and white citizens in public places.

codfish influenced the yankee trade because they traded it with the americans and the americans traded livestock, molasses and stuff that they can make clothes out of (like wool, and leather). they also could make weapons to.