Canadian History, Defining Modern Canada (1982-Present) By patrickzzz Jan 21, 1870 Imperial Relations Period: Jan 21, 1870 to Jan 21, 2012 Canada Jan 21, 1917 Battle of Vimy Ridge Jan 21, 1929 Great Depression Jan 21, 1940 Battle of Britain Jan 21, 1945 Induction into the United Nations Jan 21, 1982 Charter of Rights and Freedoms Jan 21, 1984 Health Care Jan 21, 1994 North American Free Trade Agreement (NAFTA) Jan 21, 1995 World Trade Agreement Jan 21, 2012 Role of the Economics