1919: John Reed forms the Communist Labor Party in Chicago. The Party’s motto: "Workers of the world unite!"
1921: 10,000 striking miners began a fight at Blair Mountain, West Virginia for recognition of their union, the United Mineworkers Of America.
1980: The Solidarity workers movement was founded as a strike coordination committee at Lenin Shipyards in Gdansk, Poland. The strike launched a wave of unrest in the Soviet Union that ultimately led to its dissolution in 1991.
2013: A merger of the Canadian Auto Workers and the Communications, Energy and Paperworkers brings 300,000 workers together in Unifor, Canada's largest private sector union.
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