A. role B. enormous C. Instead of D. muttering E. strikingF. mediated G. originally H. perpetual I. In spite of J. emergingK. gesture L. mistreatment M. abolish N. parade O. practically Many countries have a holiday to celebrate workers' rights on or around May 1, but Labour Day in Canada is celebrated on the first Monday of September. Canada's Labour Day was 1 celebrated in the spring but it was moved to the fall after 1894. The origins of Labour Day can be traced back to April 15, 1872, when the Toronto Trades Assembly organized Canada's first significant 2for worker's rights. The aim was to release the 24 leaders of the Toronto Typographical Union who were imprisoned for 3to campaign for a nine-hour working day. At this time, trade unions were still illegal and what they did was seen as a criminal conspiracy to disrupt trade. 4this, the Toronto Trades Assembly was already a significant organization and encouraged workers to form trade unions, 5in disputes between employers and employees and signaled the 6of workers. There was 7public support for the demonstration and the authorities could no longer deny the important 8that the trade unions had to play in the 9Canadian democratic society. A few months later, a similar demonstration was organized in Ottawa and passed the house of Canada's first prime minister, Sir John Macdonald. Later in the day, he appeared before the gathering and promised to 10all Canadian laws against trade unions. This happened in the same year and eventually led to the founding of the Canadian Labour Congress in 1883. A similar holiday, Labor Day is held on the same day in the United States of America. Canadian trade unions are proud that this holiday was inspired by their efforts to improve workers' rights.