For a lot of people, Labor Day means two things: a day off and the end of summer. But why is it called Labor Day? Labor Day is a day set aside to pay tribute to working men and women. It has been celebrated as a national holiday in the United States and Canada since 1894.
In European countries, China and other parts of the world, May Day, the first day in May, is a holiday to celebrate workers and labor unions. Before it became an international workers holiday, May Day was a celebration of spring and the promise of summer.