Civil War, American, a military conflict between the United States of America (the Union) and the Confederate States of America (the Confederacy) from 1861 to 1865.

The American Civil War is sometimes called the War Between the States, the War of Rebellion, or the War for Southern Independence. It began on April 12, 1861, when Confederate General P. G. T. Beauregard opened fire on Fort Sumter in Charleston Harbor, South Carolina, and lasted until May 26, 1865, when the last Confederate army surrendered. The war took more than 600,000 lives, destroyed property valued at $5 billion, brought freedom to 4 million black slaves, and opened wounds that have not yet completely healed more than 125 years later.