On Sep. 16, 1862 Texans fought and died in a bloodsoaked cornfield at the Battle of Antietam.Never one to rest on his laurels, Gen. Robert E. Lee invaded Maryland six days after winning the rematch at Bull Run. His objectives, endorsed by President Jefferson Davis, were to bring that border state into the Confederacy and the enemy, whose morale was at an all-time low, to the bargaining t...