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 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
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.
September 13 » The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.
October 31 » Benito Mussolini is made Prime Minister of Italy
November 24 » Nine Irish Republican Army members are executed by an Irish Free State firing squad. Among them is author Erskine Childers, who had been arrested for illegally carrying a revolver.
November 26 » Howard Carter and Lord Carnarvon become the first people to enter the tomb of Pharaoh Tutankhamun in over 3000 years.
December 30 » The Union of Soviet Socialist Republics is formed.
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
April 13 » American pianist Van Cliburn is awarded first prize at the inaugural International Tchaikovsky Competition in Moscow.
May 13 » May 1958 crisis: A group of French military officers lead a coup in Algiers demanding that a government of national unity be formed with Charles de Gaulle at its head in order to defend French control of Algeria.
June 1 » Charles de Gaulle comes out of retirement to lead France by decree for six months.
August 29 » United States Air Force Academy opens in Colorado Springs, Colorado.
September 2 » United States Air Force C-130A-II is shot down by fighters over Yerevan in Armenia when it strays into Soviet airspace while conducting a sigint mission. All crew members are killed.
October 7 » The U.S. manned space-flight project is renamed Project Mercury.
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 25, 2026), "Machiel de Haan (1897-1958)".
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