How many years did Reconstruction go on for and why did it end?

Reconstruction lasted from 1865 to 1877, spanning 12 years following the American Civil War. It ended primarily due to a combination of factors, including political compromises, economic challenges, and growing opposition to federal intervention in the South. The Compromise of 1877 effectively marked its conclusion, as it resulted in the withdrawal of federal troops from Southern states in exchange for resolving the disputed 1876 presidential election. This led to the resurgence of white supremacist control in the South and the establishment of Jim Crow laws.