todayinlaborhistory:

Today in labor history, July 10, 1902:  A powerful gas and dust explosion occurs in the Rolling Mill Mine in Johnstown, Pennsylvania, killing 112 miners.  The disaster devastated the immigrant community and provoked calls for investigations and greater safety measures.  The Rolling Mill Mine Disaster still ranks as one of the deadliest mining accidents in the history of the U.S. 

todayinlaborhistory:

Today in labor history, July 10, 1902:  A powerful gas and dust explosion occurs in the Rolling Mill Mine in Johnstown, Pennsylvania, killing 112 miners.  The disaster devastated the immigrant community and provoked calls for investigations and greater safety measures.  The Rolling Mill Mine Disaster still ranks as one of the deadliest mining accidents in the history of the U.S.