1、此节源于美国芝加哥的工人大罢工。1886年5月1日，芝加哥的20 多万工人为争取实行八小时工作制而举行大罢工，经过艰苦的流血斗争，终于获得了胜利。为纪念这次工人运动，1889年7月14日，由各国马克思主义者召集的社会主义者代表大会，在法国巴黎隆重开幕。大会上，与会代表一致同意：把5月1日定为国际无产阶级的共同节日。这一决议得到世界各国工人的积极响应。1890年5月1日，欧美各国的工人阶级率先走上街头，举行盛大的示威游行与集会，争取合法权益。从此，每逢这一天世界各国的劳动人民都要集会、游行，以示庆祝。
2、The workers of this day from the Chicago strike. In May 1, 1886, Chicagos about 200000 workers for the implementation of the eight hour working day strike held, after a bloody hard struggle, finally achieved victory. To commemorate the labor movement, July 14, 1889, convened by the Marx doctrine socialists Congress opened in Paris, france. Conference, delegates agreed: the May 1st international proletarian common festival. This resolution received a positive response from workers in countries around the world. May 1, 1890, Europe and the United States took the lead in the streets of the working class, held a grand demonstration and rally to fight for the legitimate rights and interests. From then on, every day the working people of all the countries in the world have to rally and March to celebrate.
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