Answer: <u>Confederation, 1867</u>
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<u>The sinking of the Titanic, 1912</u>
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<u>The Battle of Vimy Ridge, 1917</u>
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<u>Women at the Voting Booths, 1918</u>
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<u>Discovery of Insulin, 1922</u>
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<u>The Great Depression, 1929</u>
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<u>Second World War, 1939</u>
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<u>Women in Space, 1992</u>
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<u>Women’s hockey gold, 2002</u>
<u>Legalization of Same-Sex Marriage, 2005</u>
Explanation: i know i added more than three but its just in case you know