Canada experienced remarkable economic, social, and political transformations in the post-war period from 1945-1969. The economy shifted from resource-based to more service-oriented. Population and urban growth increased dramatically. Newfoundland joined Confederation in 1949, making Canada a nation of 10 provinces. Political leadership changed between Liberal and Progressive Conservative parties who expanded social programs and infrastructure projects like the Trans-Canada Highway and St. Lawrence Seaway. This period marked Canada's rise to prominence on the global stage.