51 of cause五一的由来51 international Labor Days call 51 sections, May 1 in every year.It is the whole world labor common festival of the people.五一国际劳动节简称五一节，在每年的5月1日。它是全世界劳动人民的共同节日。As for"51 causes of the section"s are such:关于五一节的由来是这样的：This stanza comes from the worker’s big strike of American Chicago.On May 1 in 1886, Chicago of 20 in order to fight for practicing eight hours to work to make but hold the big strike, many ten thousand workerses pass by hard of bloodshed conflict, acquired the victory finally.For memorial this time the socialist that the worker’s one who exercise, July 14 in 1889, from all countries Marxist call represents the conference, Parisian solemn and impressive open in France.On the conference, attend meeting to represent the consistent approval:Common festival that May 1 settles for the international proletariat.This resolution gets the international community, the worker responds to actively.On May 1 in 1890, the working class of Euro-American all countries leads off to go into the street, holding the grand demonstration and holding a meeting, fighting for the legal rights.From now on, every time round this international community labors the people to all want the catcall, parade, to show to celebrate.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(高教网教育阅读www.www.gjw.cn)
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。The Chinese people celebrate the activity of the Labor Day and can trace back to to 1918.Is a year, etc. of some knowledge members of revolution at Shanghai, Suzhou ground sends forth to introduce toward crowd"51" of handbill.On May 1 in 1920, worker’s crowd of etc. of Peking, Shanghai, Guangzhou city goes into the street to hold the huge parade of threatening force and hold a meeting.After new China establish, our country in December of 1949 wi