What did the federal government do in response to the South's dealings
with newly freed slaves?

After rejecting the Reconstruction plan of President Andrew Johnson, the Republican Congress enacted laws and Constitutional amendments that empowered the federal government to enforce the principle of equal rights, and gave black Southerners the right to vote and hold office.

Explanation:

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.