1863 Battle of Gettysburg
155 years ago, on July 1, 1863, the Battle of Gettysburg (Pennsylvania) began, which became the decisive battle of the American Civil War of 1861-1865. The Northern Army of the Potomac, led by General George Meade, repulsed all the attacks of the Northern Virginia Army of the Southerners under the command of Robert E. Lee, who was forced to retreat on the morning of July 4.