On July 6, 1892, three hundred armed Pinkerton agents arrived in Homestead, Pennsylvania to retake the Carnegie Steelworks from the company's striking workers. As the agents tried to leave their boats, shots rang out and a violent skirmish began. The confrontation at Homestead was a turning point in the history of American unionism, beginning a rapid process of decline for America's steel unions that lasted until the Great Depression.

Paul Kahan teaches history at Ohlone College in Fremont, California.