Canadian labor Congress
At 11:00 am on May 15, 1919, workers walked off the job and marched into the streets of Winnipeg, leading to one of the biggest labour actions Canada has ever seen. Strikers included both the private and public sectors, and ranged from garment workers to police officers. On June 21, 1919, the Royal North-West Mounted Police and hired union busters rode on horseback and fired into a crowd of thousands of workers, killing two and injuring countless others.