United States History
Lesson 3 of 4 9 min +55 XP

Reconstruction & Its Undoing

Rebuilding, and the promise deferred.

What you'll learn

  • Summarize the goals of Reconstruction
  • Name the Reconstruction Amendments
  • Explain how its gains were rolled back
The promise made and taken back

After the war, formerly enslaved people briefly voted and held office — then those rights were stripped away for generations. Reconstruction is the story of a promise of equality raised, then deliberately undone.

A second founding — and its retreat

After the Civil War, Reconstruction (1865–1877) sought to reunite the nation and define the rights of four million newly freed people. Three amendments transformed the Constitution: the 13th abolished slavery, the 14th guaranteed equal protection and citizenship, and the 15th protected Black men's right to vote.

The rollback

After federal troops withdrew in 1877, Southern states imposed Jim Crow laws and disenfranchisement. The 14th and 15th Amendments' promises went largely unenforced for nearly a century, until the Civil Rights Movement.

The 14th Amendment's equal-protection clause, gutted in practice after 1877, later became the constitutional basis for Brown v. Board of Education (1954).
Simulation · Order the timeline

Click the events from earliest to latest.

0/4 placed

Order the key milestones from emancipation through the Civil Rights era.

Lab · Promise vs. practice
  1. Note that the 15th Amendment protected Black men's vote in 1870.
  2. Recall the disenfranchisement that followed 1877.
  3. Explain the gap between the amendment's text and lived reality.

What you should see: The right existed on paper, but poll taxes, literacy tests, and violence suppressed it — a gap between constitutional promise and enforcement that persisted until the 1960s.

Knowledge Check

+15 XP / correct

1. Which amendment abolished slavery in the United States?

2. After Reconstruction ended in 1877, its gains were largely rolled back by…