Timeline With Attitude By aaronk7777 1914 Canada Joins the War (+2) ♠ Description 1914 Letter from Arthur Mignault (+1) ♦ Description 1916 Lieutenant Colonel Borden's Letter (+1) ♠ Description 1916 The Business Profits War Tax Act (-2) ♦ Description 1917 National Election (-1) ♣ Description 1918 Mae Belle Sampson (+2) ♠ Description 1920 The First Residential School (-2) ♠ Description 1922 Frederick Banting (+2) ♠ Description 1923 Chinese Immigration Act (-1) ♠ description 1930 The Famous Five (First Female Senate) (+2) ♣ description