Labor Day the Knights of Labor, which organized the first parade in New York City. In 1887, Oregon was the first state of the United States to make it an official public holiday. By the time it became an official federal holiday in 1894, thirty states in the United States officially celebrated Labor Day. Canada's Labour Day is also celebrated on the first Monday of September. More than 80 countries celebrate International Workers' Day on May 1 – the ancient European holiday of May Day. (May Day was chosen by the Second Internationale of socialist and communist parties to commemorate the Haymarket
Labor Day By the time it became an official federal holiday in 1894, thirty U.S. states officially celebrated Labor Day. All U.S. states, the District of Columbia, and the United States territories have subsequently made Labor Day a statutory holiday. The date of May 1 (an ancient European folk holiday known as May Day) emerged in 1886 as an alternative holiday for the celebration of labor, later becoming known as International Workers' Day. The date had its origins at the 1885 convention of the American Federation of Labor, which passed a resolution calling for adoption of the eight-hour day effective May 1,