April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
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.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
Day of death October 21, 1973
The temperature on October 21, 1973 was between 3.9 °C and 12.2 °C and averaged 8.6 °C. There was 2.9 mm of rain during 2.6 hours. There was 0.9 hours of sunshine (9%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 11 » Major League Baseball owners vote in approval of the American League adopting the designated hitter position.
February 22 » Cold War: Following President Richard Nixon's visit to the People's Republic of China, the two countries agree to establish liaison offices.
April 6 » Launch of Pioneer 11 spacecraft.
August 2 » A flash fire kills 51 people at the Summerland amusement centre at Douglas, Isle of Man.
September 11 » JAT Airways Flight 769 crashes into the Maganik mountain range while on approach to Titograd Airport, killing 35 passengers and six crew.
October 10 » U.S. Vice President Spiro Agnew resigns after being charged with evasion of federal income tax.
When copying data from this family tree, please include a reference to the origin: H.F. Brons, "Family tree Brons", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-brons/I477.php : accessed February 22, 2026), "Roelfke Johannes Houkes (1897-1973)".
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