Reconstruction, spanning from 1865 to 1877, marked a pivotal era in American history. This period saw significant changes, including the ratification of constitutional amendments granting citizenship and voting rights to African Americans, and the establishment of the Freedmen's Bureau to aid former slaves. Despite these advancements, Reconstruction faced numerous challenges. The rise of white supremacist groups, the implementation of Jim Crow laws, and the Compromise of 1877 ultimately undermined many of the era's gains, leaving a complex legacy that continues to shape race relations in the United States today.