In July 1889, the second international congress led by Engels was held in Paris.
The conference passed a resolution, and decided to May 1 this day as the international labor day.
The executives of the central people's government decided in December 1949 to designate May 1 as labor day.
After 1989, the state council basically commended the national model workers and advanced workers every five years,
commending about 3,000 people at a time.
On March 22, 2019, the general office of the state council adjusted the schedule of labor day holiday in 2019,
and the solstice holiday on May 1, 2019 was adjusted for 4 days.