Australia Between the Wars By ngarrety Jul 21, 1914 WW1 breaks out WW1 breaks out Period: Jul 21, 1914 to Sep 2, 1945 Australia Between the Wars Nov 11, 1918 End of WW1 Jan 1, 1920 Communist Party formed Jan 1, 1921 Edwin Cowan elected to parliament Jan 1, 1923 Sydney Harbour Bridge Consturction Commences Jan 1, 1924 Compulsory Voting Introduced Jan 1, 1925 Immigration Restriction Act Jan 1, 1929 Wall Street Crash Jan 1, 1930 Phar Lap Wins Melbourne Cup Jan 1, 1932 Sydney Harbour Bridge Opens Sep 1, 1939 Outbreak of WWII Sep 2, 1945 End of WWII