Labor Day - Wikipedia

The first Labor Day in the United States was observed on September 5, 1882, by the Central Labor Union of New York. The origins of Labor Day can be traced back to Canada when, in December 1872 a parade was staged in support of the Toronto Typographical Union's strike for a 58-hour work-week. Ten years later, American Peter J. McGuire, co-founder of the American Federation of Labor, was asked to speak at a labour festival in Toronto, Canada on July 22, 1882. Returning to the United States, McGuire and the Knights of Labor organised a similar parade based on the Canadian event on September 5, 1882 in New York City, USA. It became a federal holiday in 1894, when, following the deaths of a number of workers at the hands of the U.S. military and U.S. Marshals during the Pullman Strike, President Grover Cleveland put reconciliation with the labor movement as a top political priority. Fearing further conflict, legislation making Labor Day a national holiday was rushed through Congress unanimously and signed into law a mere six days after the end of the strike. The September date originally chosen by the CLU of New York and observed by many of the nation's trade unions for the past several years was selected rather than the more widespread International Workers' Day because Cleveland was concerned that observance of the latter would stir up negative emotions linked to the Haymarket Affair, which it had been observed to commemorate. All U.S. states, the District of Columbia, and the territories have made it a statutory holiday.