Just one day before the Battle of Antietam, the Allegheny Arsenal exploded. Primarily operated by young women on the homefront, a black powder explosion rocked the munitions hub of Pittsburgh and changed the city forever. Mysteries still remain regarded what caused the explosion, and explosive rounds are still being discovered to this day. On today's episode our guests are Senator John Heinz History Center CEO Andrew Masich and Lawrenceville Historical Society researcher Jim Wudarczyk...spared no expense.