Portal:Organized Labour/Did You Know?/187
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... that May Day was first celebrated in Persia in 1922, and during the 1920s thousands of people participated in the May Day rallies of the Central Council of Trade Unions in Tehran?
... that May Day was first celebrated in Persia in 1922, and during the 1920s thousands of people participated in the May Day rallies of the Central Council of Trade Unions in Tehran?