The first Monday in September has been an official holiday in Canada since 1894, and in the United States since 1892. But the origin of Labour Day came 20 years before that, when unions started holding parades and rallies in Toronto and Ottawa to celebrate the successful 1872 Toronto printers’ strike – that won the decriminalization of unions in Canada. …the origins of Labour Day come from the struggles of working people and the demand for fairness. In this case, it was the movement to establish a 9-hour work day (the standard was a 12-hour work day and a 6-day work week) and a strike by printers in Toronto in the spring of 1872 to get it. …In 1882, an American labour leader witnessed the annual May “labour day” festivities in Toronto which inspired him to organize the first American “labor day” on September 5 that same year. …In Canada, pressure had been mounting to declare a national labour holiday. On July 23, 1894 the government of Prime Minister John Thompson passed a law making Labour Day official.