The Civil War Turning Points in the East: The Battle of Antietam and the Battle of Gettysburg

Summary

The bloodiest day in American history took place on the 75th anniversary of the signing of the Constitution. On September 17, 1862, Robert E. Lee’s Confederate Army of Northern Virginia fought George McClellan’s Union Army of the Potomac outside Sharpsburg along Antietam Creek. That day, nearly 25,000 would become casualties, and Lee’s army would barely survive fighting the much bigger Northern army. Although the battle was tactically a draw, it resulted in forcing Lee’s army out of Maryland and back into Virginia, making it a strategic victory for the North and an opportune time for President Abraham Lincoln to issue the Emancipation Proclamation, freeing all slaves in the rebellious states. For those reasons, Antietam is remembered as one of the major turning points of the Civil War, even as it is often overlooked that the bloody battle only represented the climactic culmination of a 3 week campaign that saw George McClellan cautiously pull a fragmented Union army together and begin tracking Lee’s army into Maryland.

Without question, the most famous battle of the American Civil War took place outside of the small town of Gettysburg, Pennsylvania, which happened to be a transportation hub, serving as the center of a wheel with several roads leading out to other Pennsylvanian towns. From July 1-3, Robert E. Lee’s Confederate Army of Northern Virginia tried everything in its power to decisively defeat George Meade’s Union Army of the Potomac, unleashing ferocious assaults that inflicted nearly 50,000 casualties in all. Day 1 of the battle would have been one of the 25 biggest battles of the Civil War itself, and it ended with a tactical Confederate victory. But over the next two days, Lee would try and fail to dislodge the Union army with attacks on both of its flanks during the second day and Pickett’s Charge on the third and final day.