Remembering Gettysburg

This week marks the 150th anniversary of the Battle of Gettysburg, the bloodiest conflict ever on American soil. In three days of fighting -- July 1-3, 1863 -- between 46,000 and 51,000 soldiers from the Union and Confederate armies became casualties of the Civil War. Strategically, it was a battle that turned the tide of war.

For more on Gettysburg, click here.

This photo was snapped 100 years ago in 1913 at Gettysburg during a 50-year commemorative celebration. Pictured are two old soldiers -- one Union and one Confederate -- shaking hands (via the Library of Congress):