The Haymarket riots in Haymarket Square in Chicago, Illinois are the start of a general strike; events are today commemorated as May Day or Labour Day in most industrialized countries (1886)
The Union Labor Life Insurance Company is founded by the American Federation of Labor (1927)
The Democratic People's Republic of Korea (North Korea) is established, with Kim Il-sung as president (1948)
The Prime Minister of Cuba, Fidel Castro, proclaims Cuba a socialist nation and abolishes elections (1961)
b: Herbert Backe (1896), Horst Schumann (1906); d: Joseph Goebbels and Magda Goebbels (1945), Eldridge Cleaver (1998)
Get 'On this day' by RSS or via daily email.