May 1 is an international Labor Day, it is the people's common festival of the whole world labor.The Labor Day comes from the worker of Chicago city in the United States to go on strike greatly.On May 1,1886, Chicago of be close to 220,000 workers in order to fight for practicing for eight hours, work system but hold great strike, through hardship of bloodshed conflict, acquired victory finally.
For memorial this worker who is great exercise, in 1889 July"Second International" declare every year on May 1 for the country border Labor Day, get an international community, the worker responds to actively.
Lately after China establish, central people government in December,1949 settle for the Labor Day on May 1.
