6 июл 1892 г. - A violent confrontation, known as the Homestead Steel Strike, breaks out in Homestead, Pennsylvania. Steelworkers clash with Pinkerton guards, armed with Winchester rifles, employed by the Carnegie Company. Eleven strikers and 9 Pinkertons are killed in the fighting. On 07/10/1892 the Pennsylvania National Guard mobilizes to bring order. The use of private armed guards to confront workers was very controversial.