The 1919 strike is the largest in Canada’s history, and shut Winnipeg down. While the strike started out as a simple labor dispute, there were many factors involved in how it played out, and a conspiracy theory that it was a communist uprising.
For two weeks in 1919, the city of Limerick went on a labor strike. During that time, the strike committee managed the workings of the city, including food supplies, and it even began printing its own currency.
One of the worst mining tragedies in history, the explosion that sent fire through the Courrières mine tunnels claimed more than a thousand lives. It also created awareness of dangerous issues in mines that hadn't received much focus up to that point.