Communist Party of Canada.

The Communist Party of Canada was founded in Guelph, Ontario in June 1921 as a secret organization. It became a fully open party in 1924. In 1940 it was banned under the War Measures Act. In 1943 it re-emerged as a "new" party, the Labor-Progressive Party (LPP). The period from 1943-1945 was its most successful, with a claimed membership of 20,000. Tim Buck (1891-1973), a machinist and trade unionist, was general-secretary of the party for thirty-two years although he was forced underground during the 1940-1943 period. He also served as the national leader of the LPP.