Eighteen-year-old Hannah (Annie) Shapiro leads a spontaneous walkout of 17 women at a Hart Schaffner & Marx garment factory in Chicago. It grows into a months-long mass strike involving 40,000 garment workers across the city, protesting 10-hour days, bullying bosses and cuts in already-low wages - 1910

Cloakmakers begin what is to be a two-month strike against New York City sweatshops - 1910

A few weeks after workers ask for a 25 cent hourly wage, the Philadelphia Rapid Transit (streetcar) Co. fires 173 union members “for the good of the service” and brings in replacements from New York City. Striker-scab battles and a general strike ensued - 1910