This is a set of cartoon flat style, May Day Labor Day theme class PPT template, a total of 23; Slide template cover, using three cartoon worker scribe as the background, above using bold art words to fill in the most glorious LABOR PPT title. The interface design is easy and simple. PowerPoint template content page, workers in various industries with picture matching class copy. Introduction to the MAY Day Labor Day theme class PPT content: The origin and significance of Labor Day Second, hard workers Third, I am a small laborer Four, Labor Day quotes and songs The origin and significance of Labor Day The May Day International Labor Day began with a workers' strike in Chicago, USA. On May 1, 1886, 216,816 workers in Chicago went on a general strike for an eight-hour work system, and after a bitter and bloody struggle, they finally won. In honor of this great workers' movement, in July 1889, at the Second Founding Conference of the Engels Organization, it was announced that May 1 stalwart may would be the International Labour Day. On May 1, 1890, the working class in Europe and the United States took the lead in taking to the streets and holding grand demonstrations and rallies to fight for their legitimate rights and interests. Since then, every day the working people of all countries around the world have to meet, march, to celebrate, and public holidays.