The Battle of Gettysburg was fought in Pennsylvania from July 1 to July 3, 1863.

It was one of the most significant battles of the Civil War and marked a turning point in the conflict. The battle involved the largest number of casualties in the war, with approximately 51,000 soldiers killed, wounded, or missing. Union forces, led by General George Meade, successfully repelled the Confederate Army, commanded by General Robert E. Lee. This victory halted Lee's invasion of the North and boosted Northern morale, influencing the war's subsequent trajectory.