On this day in 1935, ~5,000 striking workers in Minneapolis clashed with police in the "Battle for Seward". By the end of the night, two people were killed by police. Workers later won a 40 hour week, higher wages, and overtime pay.

Image: The Flour City Ornamental Iron Company building, with broken windows after a clash between union organizers and police escalated into a gun battle on September 11th, 1935. From the Minnesota Historical Society.