On this day in 1898, having recently discovered polonium, future Nobel Prize winners Marie and Pierre Curie discovered the radioactive chemical element radium, a silvery white metal that would be used to treat cancer.
More Events on this day:
1988: Pan Am flight 103 exploded over Lockerbie, Scotland, apparently because of a terrorist bombing; in 2003 the government of Libya accepted responsibility for the explosion and in 2004 agreed to compensate the families of the victims.
1958: Charles de Gaulle was elected president of the French Fifth Republic.
1913: The New York World published the first modern crossword puzzle.
Source: Encyclopædia Britannica Online Daily