Andrew Johnson became the president after the killing of Abraham Lincoln. He was the vice president when Lincoln was in office. Johnson passed laws that almost brought the United States back into slavery.
White League & KKK
The black codes was the southerns way of saying the freedmen had to keep acting like they were slaves. President Johnston let all this happen because he was easy on the southerns. The black codes restricted the freedmen's civil rights. The freedmen couldn't do anything that the whites were doing.
Compromise of 1877
The blacks that were into political like government or just the ones that voted were getting killed by the KKK and the White League. The white league and the KKK would do all their damage at night .
The Freedmen's Bureau was the government and the troops way to protect the African Americans or the Freedmen.
The Compromise of 1877 was the way of the government saying the African Americans can manage their own freedom. The Compromise helped the African Americans to get the rights that they have been asking for, for years.