During the period following the Civil War, the United States faced significant challenges as it attempted to rebuild the South and integrate formerly enslaved individuals into society. This era, known as Reconstruction, was marked by various policies aimed at rebuilding the Southern economy and ensuring civil rights for African Americans. However, this period came to an end in the 1870s, leading to the resurgence of white supremacy and Jim Crow laws. What event is most commonly associated with the end of Reconstruction?