1862 – The Battle of Antietam, or Sharpsburg

Maj. Gen. George B. McClellan, USA, and Gen. Robert E. Lee, CSA, fighting the deadliest one day battle on Sep 17, with over 22,000 casualties, at sites including the East Woods, West Woods, the Cornfield, the Bloody Lane, the Dunkard Church, Burnside’s Bridge, Mumma’s farm, near the Piper Farmhouse, etc. Lee withdraws across the Potomac and McClellan fails to push the issue. (Sep 16-17)
Union losses:12,401 men
2,108 dead
9,540 wounded
753 missing
Confederate losses:10, 406
1,546 dead
7,752 wounded
1,108 missing