362 killed in worst mining disaster in U.S. history 110 years ago this hour #OnThisDay #OTD (Dec 6 1907)


Video: 'Monongah 1907 Mine Disaster'

(Friday, December 6, 1907, 10:28 a.m. local time) — The worst mining disaster in American history occurred today as 362 men and boys died in a coal mine explosion in Monongah, West Virginia.