1811 Largest rebellion crushed but inspires others
1811 Lewis Hayden: Leading abolitionist, state politician
1825 March Haynes: Freedom guide, key Union spy
1846 After defeat, Mexico cedes 55% of its land to U.S.
1849 Harriet Tubman: "Moses" is also top Union spy
1850 Martin Delany: Abolitionist leader champions Black self-reliance
1851 Sojourner Truth: Activist for abolition, women's rights, prison reform
1858 Plan hatched for guerrilla war against slavery
1861 African Americans push to serve in military
1861 Bloody clashes in Baltimore as Civil War starts
1861 Landscape architect helps persuade Britain to shun Confederacy
1861 Enslaved people declared "contraband of war"
1862 Robert Smalls: Sails Confederate ship to freedom
1862 Sculptor honors abolitionists, feminists
1862 William Gould: Rows to freedom, serves in Union Navy
1863 Volunteers of color rush to join Union military
1863 Tour raises funds for freedmen schools
1863 Eldest son of Frederick Douglass enlists
1863 Abraham Galloway: Militant activist, Union spy, civil rights leader
1863 Anti-Black racism fuels deadly draft riots
1863 Attack on fort repelled; 280 Union casualties
1864 Another Massachusetts regiment of color forms
1864 Gavel made from whipping post gifted to activists
1865 Death toll makes war bloodiest in U.S. history
1865 March honors fallen Union war captives