September 1, 2025: Labor Day (USA)

Labor Day is an American federal holiday observed on the first Monday in September that celebrates the economic and social contributions of workers.  In 1882, Matthew Maguire, a machinist, first proposed the holiday while serving as secretary of the CLU (Central Labor Union) of New York.  Others argue that it was first proposed by Peter J. McGuire of the American Federation of Labor in May 1882, after witnessing the annual labor festival held in Toronto, Canada.