January 31 » Czechoslav Trade Union Association is founded in Prague.
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.
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).
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 30 » The British Colony of Natal annexes Zululand.
Day of death July 31, 1967
The temperature on July 31, 1967 was between 16.9 °C and 27.0 °C and averaged 21.5 °C. There was 0.1 mm of rain during 0.1 hours. There was 8.8 hours of sunshine (56%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 14 » The New York Times reports that the U.S. Army is conducting secret germ warfare experiments.
July 29 » During the fourth day of celebrating its 400th anniversary, the city of Caracas, Venezuela is shaken by an earthquake, leaving approximately 500 dead.
July 29 » Vietnam War: Off the coast of North Vietnam the USSForrestal catches on fire in the worst U.S. naval disaster since World War II, killing 134.
August 8 » The Association of Southeast Asian Nations (ASEAN) is founded by Indonesia, Malaysia, the Philippines, Singapore and Thailand.
November 2 » Vietnam War: US President Lyndon B. Johnson and "The Wise Men" conclude that the American people should be given more optimistic reports on the progress of the war.
November 17 » Vietnam War: Acting on optimistic reports that he had been given on November 13, U.S. President Lyndon B. Johnson tells the nation that, while much remained to be done, "We are inflicting greater losses than we're taking...We are making progress."
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/I22029.php : accessed October 6, 2026), "Beitske Tjoelker (1897-1967)".
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