Econs 1101 By enning Period: 1914 to 1918 WW1 1916 The year U.S. output overtook that of the entire British empire Period: 1918 to 1920 Spanish Flu pandemic Period: 1921 to 1923 Hyperinflation in the Weimar Republic Period: 1929 to 1929 Black Thursday Period: 1929 to 1933 Great Depression 1933 Adolf Hitler rose to power as chancellor of Germany Period: 1939 to 1945 WW2 Period: 1941 to 1945 The Holocaust Period: 2007 to 2009 Great Recession 2014 The year Chinese output overtook U.S. output 2019 COVID-19 pandemic