Which was a means the federal government used to safeguard blacks' civil rights during congressional Reconstruction?

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Which was a means the federal government used to safeguard blacks' civil rights during congressional Reconstruction?

"Sending soldiers to the South to enforce antidiscrimination laws."

However, the Reconstruction period was not an easy one for African Americans in the South with the installation of racist legislation such as the Jim Crow laws or the black codes.

Indeed, a major cause of the end of Reconstruction was the informal negotiations between Democrats and Republicans to declare the winner of the elections of teh 1876 Presidential election. They negotiated and Democrats agreed to declare Rutherford B. Hayes with the following conditions.

Republicans accepted to sign the Compromise of 1877, in which they agreed on withdrawing the federal troops established in the southern states that were there to support Reconstruction. So without the presence and support of the federal troops, Reconstruction saw its last days and finally ended in 1877.

option a

explanation:

to cleberate the end of their war