Timeline with attitude during the years 1914-1929 By adele_church Period: 1914 to 1929 years Jul 4, 1914 Canada joined Brittan in WW1 Canada came to a agreement to help Brittan in WW1. This brought decline to Canada due to the war hurting the economy, which then lead to unemployment. Taxation was also used to raise money for the war effort, which was an extra burden on Canadians