Major Events in the 1920's By Martha Beasley Jan 1, 1920 The Harlem Renaissance Started Jan 29, 1920 Prohibition Begins Aug 18, 1920 Women granted the right to vote Jan 1, 1921 Lie Detector Invented Jan 1, 1921 Extreme Inflation in Germany Dec 5, 1921 Irish Free State Proclaimed Jan 4, 1925 Fitzgerald Gatsby publishes The Great Gatsby Aug 23, 1927 Immigrant Radicals Sep 30, 1927 Babe Ruth 60 Nov 6, 1928 Hoover President