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.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
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.
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 April 20, 1925
The temperature on April 20, 1925 was between 1.5 °C and 12.6 °C and averaged 7.4 °C. There was 12.5 hours of sunshine (88%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
February 21 » The New Yorker publishes its first issue.
February 28 » The Charlevoix-Kamouraska earthquake strikes northeastern North America.
March 16 » An earthquake occurs in Yunnan, China.
March 18 » The Tri-State Tornado hits the Midwestern states of Missouri, Illinois, and Indiana, killing 695 people.
April 26 » Paul von Hindenburg defeats Wilhelm Marx in the second round of the German presidential election to become the first directly elected head of state of the Weimar Republic.
October 30 » John Logie Baird creates Britain's first television transmitter.
Day of death December 18, 1981
The temperature on December 18, 1981 was between -12.3 °C and -6.7 °C and averaged -9.5 °C. There was -0.1 mm of rain. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
March 26 » Social Democratic Party (UK) is founded as a party.
August 7 » The Washington Star ceases all operations after 128 years of publication.
August 10 » Murder of Adam Walsh: The head of John Walsh's son is found. This inspires the creation of the television series America's Most Wanted and the National Center for Missing & Exploited Children.
September 21 » Belize is granted full independence from the United Kingdom.
November 23 » Iran–Contra affair: Ronald Reagan signs the top secret National Security Decision Directive 17 (NSDD-17), giving the Central Intelligence Agency the authority to recruit and support Contra rebels in Nicaragua.
December 17 » American Brigadier General James L. Dozier is abducted by the Red Brigades in Verona, Italy.
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/I108652.php : accessed February 17, 2026), "Joannes Baptist Norbertus van Rijswijk (1897-1981)".
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