April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
Day of death May 23, 1966
The temperature on May 23, 1966 was between 8.8 °C and 15.5 °C and averaged 12.2 °C. There was 11.8 hours of sunshine (74%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
June 30 » The National Organization for Women, the United States' largest feminist organization, is founded.
July 24 » Michael Pelkey makes the first BASE jump from El Capitan along with Brian Schubert. Both came out with broken bones. BASE jumping has now been banned from El Cap.
August 18 » Vietnam War: The Battle of Long Tan ensues after a patrol from the 6th Battalion, Royal Australian Regiment clashes with a Viet Cong force in Phước Tuy Province.
October 4 » Basutoland becomes independent from the United Kingdom and is renamed Lesotho.
October 15 » The Black Panther Party is created by Huey P. Newton and Bobby Seale.
October 17 » The 23rd Street Fire in New York City kills 12 firefighters.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I184043.php : accessed October 24, 2026), "Hendrik Frederik Wienbelt (1897-1966)".
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