It is the 87th day of the year, with only 278 days remaining.
193 - Roman Emperor Pertinax is assassinated by Praetorian Guards, who then sell the throne in an auction to Didius Julianus.
1802 - Heinrich Wilhelm Matthaus Olbers discovers 2 Pallas, the second asteroid known to man.
1862 - Battle of Glorieta Pass occurs, when Union forces stop the Confederate invasion of New Mexico territory, starting two days earlier.
1910 - Henri Fabre becomes the first person to fly a seaplane, the Fabre Hydravion, after taking off from a water runway near Martigues, France.
1930 - Constantinople and Angora, decides to change their names to Istanbul and Ankara.
1946 - The United States State Department releases the Acheson-Lilienthal Report, outlining a plan for the international control of nuclear power.
1979 - Operators of Three Mile Island's Unit 2 nuclear reactor outside of Harrisburg, Pennsylvania fail to recognize that a relief valve in the primary coolant system has stuck open following an unexpected shutdown. As a result, enough coolant drains out of the system to allow the core to overheat and partially melt down.
1990 - President George H. W. Bush posthumously awards Jesse Owens the Congressional Gold Medal.