72 copper miners’ children die in panic caused by a company stooge at Calumet, Mich., who shouted “fire” up the stairs into a crowded hall where the children had gathered. They were crushed against closed doors when they tried to flee - 1913

AFL convention passes a one-cent per capita assessment to aid the organization of women workers. (Exact date uncertain) - 1913

The Ford Motor Co. introduced the continuous moving assembly line which could produce a complete car every two-and-a-half minutes - 1913