July 27 (UPI) -- On this date in history:
In 1794, Maximilien Robespierre, architect of the French Revolution's Reign of Terror, was overthrown and arrested by the National Convention. Robespierre, who encouraged the execution, mostly by guillotine, of more than 17,000 enemies of the revolution, was himself guillotined the following day.
In 1909, Orville Wright set a record by staying aloft in a plane for 1 hour, 12 minutes, 40 seconds.
In 1921, at the University of Toronto, Canadian scientists Frederick Banting and Charles Best successfully isolated insulin -- a hormone they believed could prevent diabetes -- for the first time.
In 1953, a truce officially ended the Korean War, which had begun June 25, 1950.
