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| 1947, Feb. 12 |
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| Prime Minister William King announced continued military cooperation between Canada and the U.S. | 1 |
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| 1948, July 22 |
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| A referendum in Newfoundland to decide between future self-government and confederation with Canada voted in favor of confederation by a narrow margin (78,408–71,464). On March 31, 1949, Newfoundland joined Canada as the tenth province. | 2 |
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| 1949, April 4 |
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| Canada signed the North Atlantic Treaty. | 3 |
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| June 27 |
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| National elections gave the Liberal Party an overwhelming majority of 193 of the 262 seats in the House of Commons. | 4 |
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| Nov. 22–Dec. 2 |
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| The British Parliament passed The British North America Bill granting the Parliament of Canada the right to amend Canada's constitution. | 5 |
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