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.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
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.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
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.
Day of marriage August 26, 1922
The temperature on August 26, 1922 was between 5.7 °C and 17.7 °C and averaged 12.5 °C. There was 0.1 mm of rain. There was 12.0 hours of sunshine (85%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
March 26 » The German Social Democratic Party is founded in Poland.
April 3 » Joseph Stalin becomes the first General Secretary of the Communist Party of the Soviet Union.
April 5 » The American Birth Control League, forerunner of Planned Parenthood, is incorporated.
June 1 » The Royal Ulster Constabulary is founded.
October 19 » British Conservative MPs vote to terminate the coalition government with the Liberal Party.
October 31 » Benito Mussolini is made Prime Minister of Italy
Day of death April 22, 1968
The temperature on April 22, 1968 was between 8.6 °C and 23.0 °C and averaged 15.7 °C. There was 1.6 mm of rain during 1.3 hours. There was 3.9 hours of sunshine (27%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
February 1 » Canada's three military services, the Royal Canadian Navy, the Canadian Army and the Royal Canadian Air Force, are unified into the Canadian Forces.
April 4 » Martin Luther King Jr. is assassinated by James Earl Ray at a motel in Memphis, Tennessee.
April 23 » Vietnam War: Student protesters at Columbia University in New York City take over administration buildings and shut down the university.
September 15 » The Soviet Zond 5 spaceship is launched, becoming the first spacecraft to fly around the Moon and re-enter the Earth's atmosphere.
October 26 » Soviet cosmonaut Georgy Beregovoy pilots Soyuz 3 into space for a four-day mission.
December 20 » The Zodiac Killer kills Betty Lou Jenson and David Faraday in Vallejo, California.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I51464.php : accessed February 17, 2026), "Marinus Heesbeen (1897-1968)".
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