International Labor Day, also known as "May 1 International Labor Day" and "International Demonstration Day", is a national holiday in more than 80 countries in the world. On May 1 day every year. This is a festival for working people all over the world. 1889 In July, the Second International led by Engels held a congress in Paris. The meeting passed a resolution stipulating that international workers should hold a March on May 1 890, and decided to designate May 1 as the International Labor Day.

/kloc-At the end of 0/8th century, many countries such as the United States and Europe gradually developed from capitalism to imperialism. In order to stimulate the rapid economic development and extract more surplus value, and to maintain this high-speed capitalist machine, capitalists constantly exploit workers by increasing labor time and labor intensity.

1877, the first national strike in American history began. The working class took to the streets to demonstrate and proposed to the government to improve working and living conditions, demanding that working hours be shortened and an eight-hour working day be implemented. Shortly after the strike, the ranks were expanding day by day, the number of trade union members surged, and workers from all over the country also took part in the strike movement.

After a hard and bloody struggle, we finally won. To commemorate the workers' movement, the socialist congress convened by Marxists from all over the world was grandly opened in Paris, France on July 4th. 1889. At the congress, the delegates unanimously agreed to designate May 1 day as the International Proletarian Day. This decision immediately received a positive response from workers all over the world.