837: 15th recorded perihelion passage of Halley's Comet.

1910: Clarence Leonard “Kelly” Johnson is born in Ishpeming Michigan.(Q)

1920: Major Rudolph W. Schroeder of the US Army Air Service sets a new world altitude record when he flies to the height of 33,143 feet. During the flight over McCook Field in Dayton, Ohio he nearly loses his life when his oxygen system fails.

1935: Latècoère’s giant seaplane Santos Dumont lands with a cargo of mail after a record flight of 53 hours 4 minutes from Natal, Brazil to Paris, with two stops en route.

1942: J. S. Hey discovers radio emissions from Sun.

1965: The world’s largest aircraft at the time, the Antonov An-22 Antei, makes its first flight. It is powered by four 15,000 EHP Kuznetsov NK-12 turboprop engines.

1967: First delivery of a McDonnell Douglas DC-9-30 to Eastern Airlines.

1970: Hawker Siddeley begins buying back surplus Hawker Hunters from the Royal Air Force to remanufacture for new customers.