Federals blow up a tunnel to break Confederate lines at Petersburg, Virginia 150 years ago this hour (July 30 1864)

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.

Pop singer Cass Elliot, 32, dies of a heart attack 40 years ago today (July 29 1974)

Video: 'Death by Excess - Mama Cass'

(Monday, July 29, 1974) — Singer Cass Elliot (born Ellen Naomi Cohen), 32, was found dead today in a London apartment where she was staying. It was rumored that the former Mamas and Papas lead singer choked on a ham sandwich, but a coroner ruled she had suffered a heart attack in her sleep overnight. Continue reading