January 31 » Czechoslav Trade Union Association is founded in Prague.
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.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage May 18, 1923
The temperature on May 18, 1923 was between 2.1 °C and 11.6 °C and averaged 7.2 °C. There was 12.2 mm of rain. There was 3.2 hours of sunshine (20%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
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 15 » Greece becomes the last European country to adopt the Gregorian calendar.
June 9 » Bulgaria's military takes over the government in a coup.
June 27 » Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH.4B biplane.
July 24 » The Treaty of Lausanne, settling the boundaries of modern Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in World War I.
September 26 » The German government accepts the occupation of the Ruhr.
November 9 » In Munich, Germany, police and government troops crush the Beer Hall Putsch in Bavaria. The failed coup is the work of the Nazis.
Day of death May 4, 1964
The temperature on May 4, 1964 was between 8.5 °C and 15.0 °C and averaged 11.1 °C. There was 1.4 mm of rain during 0.7 hours. There was 4.5 hours of sunshine (30%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 30 » In a bloodless coup, General Nguyễn Khánh overthrows General Dương Văn Minh's military junta in South Vietnam.
February 17 » Gabonese president Léon M'ba is toppled by a coup and his rival, Jean-Hilaire Aubame, is installed in his place.
May 29 » The Arab League meets in East Jerusalem to discuss the Palestinian question, leading to the formation of the Palestine Liberation Organization.
August 16 » Vietnam War: A coup d'état replaces Dương Văn Minh with General Nguyễn Khánh as President of South Vietnam. A new constitution is established with aid from the U.S. Embassy.
October 16 » China detonates its first nuclear weapon.
December 14 » American Civil Rights Movement: Heart of Atlanta Motel v. United States: The Supreme Court of the United States rules that Congress can use the Constitution's Commerce Clause to fight discrimination.
When copying data from this family tree, please include a reference to the origin: H. Jager, "Family tree Jager", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jager/I264.php : accessed February 6, 2026), "Harm Pals (1897-1964)".
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