unit 13 By santiag-sarah Mar 14, 1917 bolshevik revolution in russia Period: Mar 14, 1919 to Mar 14, 1920 red scare Mar 14, 1921 sacco-vanzetti trial Mar 14, 1923 aldkins v childrens hospital Mar 14, 1929 stock market crash Mar 13, 1932 roosevelt defeats hoover for presidency Mar 13, 1938 second AAA