In what ways were the positive changes accomplished by Reconstruction diminished over time?

The positive changes achieved during Reconstruction, such as the establishment of civil rights for African Americans and the integration of formerly enslaved individuals into society, were gradually undermined by the rise of Jim Crow laws, which enforced racial segregation and disenfranchisement. Additionally, the Compromise of 1877 led to the withdrawal of federal troops from the South, allowing white supremacist groups to regain power and suppress black political and social advancements. Over time, systemic racism and economic inequalities persisted, eroding the gains made during this transformative period.