International Labor Day, also known as "International Labor Day" and "International Workers' Day, May Day", is a national holiday in more than 80 countries around the world. It's on May 1st every year. It is a holiday shared by working people all over the world.

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.

In July 1889, the Second International, led by Friedrich Engels, held a congress in Paris. The meeting passed a resolution to provide for a march of international workers on May 1, 1890, and decided to make May 1 the day of the International Labor Day. In December 1949, the Government Administration Council of the Central People's Government made a decision to determine May 1 as Labor Day.

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 will"51" settle for the legal Labor Day.