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.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
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.
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.
Day of marriage May 18, 1922
The temperature on May 18, 1922 was between 10.3 °C and 17.4 °C and averaged 13.0 °C. There was 4.5 hours of sunshine (28%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 9 » Brazil becomes a member of the Berne Convention copyright treaty.
June 1 » The Royal Ulster Constabulary is founded.
July 11 » The Hollywood Bowl opens.
August 27 » Greco-Turkish War: The Turkish army takes the Aegean city of Afyonkarahisar from the Kingdom of Greece.
September 9 » The Greco-Turkish War effectively ends with Turkish victory over the Greeks in Smyrna.
October 28 » Italian fascists led by Benito Mussolini march on Rome and take over the Italian government.
Day of death April 16, 1958
The temperature on April 16, 1958 was between 1.4 °C and 7.6 °C and averaged 4.6 °C. There was 0.7 mm of rain during 2.2 hours. There was 2.4 hours of sunshine (17%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
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/I108829.php : accessed December 30, 2025), "Machiel de Haan (1897-1958)".
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