1. Robert E. Lee surrendered to Ulysses S. Grant at Appomattox Court House in Virginia on April 9, 1865 after his army was defeated.
2. The Emancipation Proclamation, issued by President Lincoln on January 1, 1863, freed slaves in Confederate states but not in border states. It allowed freed slaves to join the Union Army and Navy.
3. Frederick Douglass was a prominent African American leader born into slavery who escaped and became a famous abolitionist, author, speaker and advisor to President Lincoln.