The Post-Civil War era in the United States, also known as Reconstruction, lasted from 1865 to 1877. This period followed the end of the American Civil War and focused on rebuilding the South and integrating formerly enslaved people into society. Key legislation, such as the 13th Amendment, abolished slavery, while the 14th and 15th Amendments aimed to secure citizenship and voting rights for African Americans. During Reconstruction, the federal government implemented various programs to assist in the South's recovery. However, this era faced significant challenges, including resistance from Southern states and the rise of groups like the Ku Klux Klan. Ultimately, Reconstruction ended with the Compromise of 1877, leading to the withdrawal of federal troops and the establishment of Jim Crow laws that enforced racial segregation.