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.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
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 30 » The British Colony of Natal annexes Zululand.
Day of marriage January 29, 1925
The temperature on January 29, 1925 was between 2.9 °C and 9.9 °C and averaged 6.3 °C. There was 8.2 mm of rain. There was 3.6 hours of sunshine (40%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. 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.
January 3 » Benito Mussolini announces he is taking dictatorial powers over Italy.
March 21 » Syngman Rhee is removed from office after being impeached as the President of the Provisional Government of the Republic of Korea.
April 4 » The Schutzstaffel (SS) is founded under Adolf Hitler's Nazi party in Germany.
April 16 » During the Communist St Nedelya Church assault in Sofia, Bulgaria, 150 are killed and 500 are wounded.
August 9 » A train robbery takes place in Kakori, near Lucknow, India.
September 17 » Frida Kahlo suffers near-fatal injuries in a bus accident in Mexico, causing her to abandon her medical studies and take up art.
Day of death November 15, 1970
The temperature on November 15, 1970 was between 2.3 °C and 7.5 °C and averaged 5.1 °C. There was 0.4 mm of rain during 1.1 hours. There was 0.3 hours of sunshine (3%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
April 24 » The Gambia becomes a republic within the Commonwealth of Nations, with Dawda Jawara as its first President.
August 29 » Chicano Moratorium against the Vietnam War, East Los Angeles, California. Police riot kills three people, including journalist Rubén Salazar.
October 10 » Fiji becomes independent.
October 16 » Canadian Prime Minister Pierre Trudeau invokes the War Measures Act during the October Crisis.
November 4 » Salvador Allende takes office as President of Chile, the first Marxist to become president of a Latin American country through open elections.
December 21 » First flight of F-14 multi-role combat aircraft.
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/I51246.php : accessed March 2, 2026), "Henderikus Heesbeen (1897-1970)".
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