The international labor day is also called "May Day" and "international demonstration day", is most countries in the world of labor day. On May 1st each year. It is the world of the proletariat, the working people have in common.

May Day is the result of American city of Chicago workers strike. On May 1, 1886, more than two hundred and sixteen thousand workers in Chicago for shall institute an eight-hour working day system and a general strike, after a bloody hard struggle, finally won. To commemorate the great workers' movement, in July 1889, the second international announced on May 1st each year as international labor day. This decision immediately get positive response of the workers around the world. On May 1, 1890, the working class of euro-american took to the streets, held a grand demonstrations and rallies, strive for the legitimate rights and interests. From then on, whenever that day working people around the world have to assembly, a procession, to celebrate. China's heart!

国际劳动节又称“五一国际劳动节”、“国际示威游行日”，是世界上大多数国家的劳动节。定在每年的五月一日。它是全世界无产阶级、劳动人民的共同拥有的节日。

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五一国际劳动节源于美国芝加哥城的工人大罢工。1886年5月1日，芝加哥的二十一万六千余名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。为纪念这次伟大的工人运动，1889年7月第二国际宣布将每年的五月一日定为国际劳动节。这一决定立即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向街头，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。中国心!