4 October It Happened Today
1814 Birth of French painter Jean-Francois Millet.
1822 Birth of American president Rutherford B Hayes.
1824 Mexico becomes a republic.
1895 Birth of American star of the silent screen, Buster Keaton.
1910 Portugal is declared a republic.
1947 Death of German physicist Max Planck.
1957 The USSR launches the first satellite, Sputnik 1.
1970 American singer Janis Joplin is found dead in a Hollywood hotel room after taking a heroin overdose.