when was labor day declared a national holiday

Labor Day was declared a national holiday in the United States in 1894. President Grover Cleveland signed a law on June 28, 1894, making the first Monday in September of each year a national holiday to honor American workers and their contributions. Before becoming a federal holiday, Labor Day was already celebrated in many states, with the first Labor Day parade held in 1882 in New York City and Oregon being the first state to make it an official public holiday in 1887.