1968 Event Diocese of Rome announces that it "deplored the concept," but wouldn't prohibit rock and roll masses at Church of San Lessio Falconieri 1966 Event U.S. and U.S.S.R. sign treaty to prohibit nuclear weapons in outer space 1945 Event New York is 1st to prohibit discrimination by race and creed in employment 1931 Event Baseball cuts squad from 25 to 23 players and NL continues to prohibit uniform numbers 1923 Event Ban Johnson persuades AL owners to prohibit boxing in their parks 1923 Event Beierse government refuses to prohibit NSDAP newspaper Volkischer Beobachter 1915 Event U.S. President Wilson refuses to prohibit immigration of illiterates 1881 Event Kansas becomes 1st state to prohibit all alcoholic beverages 1838 Event Tennessee becomes 1st state to prohibit alcohol 1774 Event Rhode Island becomes 1st colony to prohibit importation of slaves
