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.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
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.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of marriage August 4, 1921
The temperature on August 4, 1921 was between 10.2 °C and 20.9 °C and averaged 15.3 °C. There was 6.2 mm of rain. There was 6.3 hours of sunshine (41%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
March 31 » The Royal Australian Air Force is formed.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
December 22 » Opening of Visva-Bharati College, also known as Santiniketan College, now Visva Bharati University, India.
Day of death January 31, 1967
The temperature on January 31, 1967 was between 7.2 °C and 9.4 °C and averaged 8.3 °C. There was 0.3 hours of sunshine (3%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 29 » The "ultimate high" of the hippie era, the Mantra-Rock Dance, takes place in San Francisco and features Janis Joplin, Grateful Dead, and Allen Ginsberg.
March 12 » Suharto takes power from Sukarno when the People's Consultative Assembly inaugurate him as Acting President of Indonesia.
April 24 » Cosmonaut Vladimir Komarov dies in Soyuz 1 when its parachute fails to open. He is the first human to die during a space mission.
June 8 » Six-Day War: The USS Liberty incident occurs, killing 34 and wounding 171.
November 3 » Vietnam War: The Battle of Dak To begins.
December 20 » A Pennsylvania Railroad Budd Metroliner exceeds 155mph on their New York Division, also present day Amtrak's Northeast Corridor.
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/I80921.php : accessed October 9, 2026), "Hendrik Gorter (1897-1967)".
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