American Civil War: The Battle of Jerusalem Plank Road begins.

The American Civil War was a civil war in the United States between the Union and the Confederacy, which was formed in 1861 by states that had seceded from the Union. The central conflict leading to war was a dispute over whether slavery should be permitted to expand into the western territories, leading to more slave states, or be prohibited from doing so, which many believed would place slavery on a course of ultimate extinction.

The Battle of Jerusalem Plank Road, also known as the First Battle of the Weldon Railroad, took place during the American Civil War fought June 21–23, 1864, near Petersburg, Virginia. It was the first of a series of battles during the Siege of Petersburg aimed at extending the Union siege lines to the west and cutting the rail lines supplying Petersburg. Two infantry corps of the Union Army of the Potomac attempted to sever the Weldon Railroad, but were attacked and driven off by the Confederate Army of Northern Virginia's Third Corps, principally the division of Brig. Gen. William Mahone. The battle victory left the Weldon Railroad temporarily in Confederate hands, but the Union Army began to extend its fortifications to the west, starting to increase the pressure of the siege.