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 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
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 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.
January 11 » First use of insulin to treat diabetes in a human patient.
February 8 » United States President Warren G. Harding introduces the first radio set in the White House.
March 20 » The USSLangley is commissioned as the first United States Navy aircraft carrier.
May 19 » The Young Pioneer Organization of the Soviet Union is established.
July 11 » The Hollywood Bowl opens.
October 19 » British Conservative MPs vote to terminate the coalition government with the Liberal Party.
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
February 22 » Egypt and Syria join to form the United Arab Republic.
March 19 » The Monarch Underwear Company fire leaves 24 dead and 15 injured.
April 4 » The CND peace symbol is displayed in public for the first time in London.
May 24 » United Press International is formed through a merger of the United Press and the International News Service.
July 9 » A 7.8 Mw strike-slip earthquake in Alaska causes a landslide that produces a megatsunami. The runup from the waves reached 525m (1,722ft) on the rim of Lituya Bay; five people were killed.
October 7 » The 1958 Pakistani coup d'état inaugurates a prolonged period of military rule.
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 October 24, 2026), "Machiel de Haan (1897-1958)".
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