Confederate General John Bell Hood had to have a leg amputated and actually had two artificial legs. He kept one of the legs, which were made in Europe, tied to the saddle of his spare mount. He found the prosthetic leg helped him keep his balance while mounted on horse back, but they did little to aid his ability to walk.
The Twelfth New York Militia was the first Union regiment to cross the Potomac River and enter Virginia.
Union General Joseph Hooker is soundly defeated Confederate General Robert E. Lee's much smaller forces at the Battle of Chancellorsville. The North lost 17,000 of their 130,000 man force. Southern causalities totaled 13,000 of 60,000 men. One of the rebellions greatest leaders, General 'Stonewall' Jackson is mortally wounded during the battle.