The 1862 Maryland Battle Site is known as ANTIETAM, which is an 8-letter word. This battle was part of the American Civil War and took place on September 17th, 1862 near Sharpsburg, Maryland. It was the bloodiest single-day battle in American history, with a combined tally of 22, 717 dead, wounded, or missing. The Union forces, led by General George McClellan, were ultimately victorious in the battle, which helped to turn the tide of the war in favor of the Union.