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.
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.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage March 28, 1932
The temperature on March 28, 1932 was between 4.4 °C and 13.4 °C and averaged 8.5 °C. There was 6.7 mm of rain during 2.9 hours. There was 4.6 hours of sunshine (36%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
June 4 » Marmaduke Grove and other Chilean military officers lead a coup d'état establishing the short-lived Socialist Republic of Chile.
July 20 » In the Preußenschlag, German President Hindenburg places Prussia directly under the rule of the national government.
August 10 » A 5.1 kilograms (11lb) chondrite-type meteorite breaks into at least seven pieces and lands near the town of Archie in Cass County, Missouri.
November 24 » In Washington, D.C., the FBI Scientific Crime Detection Laboratory (better known as the FBI Crime Lab) officially opens.
December 10 » Thailand becomes a constitutional monarchy.
Day of death April 9, 1950
The temperature on April 9, 1950 was between 4.9 °C and 11.4 °C and averaged 8.9 °C. There was 2.5 mm of rain during 2.0 hours. There was 4.5 hours of sunshine (33%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west-southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I16724.php : accessed February 17, 2026), "Johan Adriaan Cornelis Mijnlieff (1897-1950)".
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