Video: 'Voices of the Civil War Episode 30: "Battle of the Crater"'
(Saturday, July 30, 1864, 4:44 a.m. local time; during the Battle of the Crater, part of the American Civil War) — Union forces tried to take Petersburg, Virginia, today by exploding a gunpowder-laden mine shaft that had been dug out beneath Confederate defense lines; the attack failed.