The 1934 West Coast Waterfront Strike (also known as the 1934 West Coast Longshoremen's Strike, as well as a number of variations on these names) lasted 83 days, and began on May 9, 1934 when longshoremen in every US West Coast port walked out. Organized by the International Longshore and Warehouse Union (ILWU), the strike peaked with the death of two workers on "Bloody Thursday" and the San Francisco General Strike which stopped all work in the major port city for four days and led ultimately to the settlement of the West Coast Longshoremen's Strike. The result of the strike was the unionization of all of the West Coast ports of the United States. The San Francisco General Strike of 1934, along with the Toledo Auto-Lite Strike of 1934 led by the American Workers Party and the Minneapolis Teamsters Strike of 1934 led by the Communist League of America, were catalysts for the rise of industrial unionism in the 1930s, much of which was organized through the Congress of Industrial Organizations. Background Longshoremen on the West Coast ports had either been unorganized or represented by company unions since the years immediately after World War I, when the shipping companies and stevedoring firms had imposed the open shop after a series of failed strikes. Longshoremen in San Francisco, then the major port on the coast, were required to go through a hiring hall operated by a company union, known as the "blue book" system for the color of the membership book. The Industrial Workers of the World had attempted to organize longshoremen, sailors and fishermen in the 1920s through their Marine Transport Workers Union. Their largest strike, the 1923 San Pedro Maritime Strike, bottled up shipping in that harbor, but was crushed by a combination of injunctions, mass arrests and vigilantism by the American Legion. While the IWW was a spent force after that strike, syndicalist thinking remained popular on the docks. Longshoremen and sailors on the West Coast also had contacts with an Australian syndicalist movement that called itself the "One Big Union" formed after the defeat of a general strike there in 1917. The Communist Party had also been active in the area in the late 1920s, seeking to organize all categories of maritime workers into a single union, the Marine Workers Industrial Union (MWIU), as part of the drive during the Third Period to create revolutionary unions. The