Secession and Shock
After Abraham Lincoln’s election in 1860, seven Southern states seceded to preserve slavery. Confederate forces attacked Fort Sumter in April 1861, beginning a war both sides initially underestimated.
Industry Meets Battlefield
Railroads, telegraphs, steamships, mass-produced weapons, and civilian factories made the Civil War an early industrial conflict. Union control of the Mississippi split the Confederacy, while victories at Gettysburg and Vicksburg in 1863 shifted momentum. Sherman’s march through the South and Grant’s pursuit of Robert E. Lee brought the conflict to its end at Appomattox in April 1865.
Freedom and Loss
Lincoln’s Emancipation Proclamation freed three million enslaved people in Confederate-held areas and weakened the South’s labor force. Union victory abolished slavery and preserved the nation, but at an extraordinary human cost: about 750,000 soldiers died, with additional civilian and displaced-person losses.
The Civil War permanently enlarged the federal government’s role in protecting rights. Its most important battlefield victory was not merely military. It changed who could claim freedom in the United States.