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.
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.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage November 21, 1922
The temperature on November 21, 1922 was between 5.4 °C and 9.7 °C and averaged 7.4 °C. There was 0.1 mm of rain. There was 0.3 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. 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.
February 9 » Brazil becomes a member of the Berne Convention copyright treaty.
March 10 » Mahatma Gandhi is arrested in India, tried for sedition, and sentenced to six years in prison, only to be released after nearly two years for an appendicitis operation.
March 18 » In India, Mohandas Gandhi is sentenced to six years in prison for civil disobedience, of which he serves only two.
September 9 » The Greco-Turkish War effectively ends with Turkish victory over the Greeks in Smyrna.
November 14 » The British Broadcasting Company begins radio service in the United Kingdom.
November 26 » The Toll of the Sea debuts as the first general release film to use two-tone Technicolor. (The Gulf Between was the first film to do so, but it was not widely distributed.)
Day of death December 16, 1968
The temperature on December 16, 1968 was between 1.1 °C and 3.6 °C and averaged 2.5 °C. There was 2.5 mm of rain during 4.4 hours. There was 1.3 hours of sunshine (17%). The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
April 4 » A.E.K. Athens B.C. becomes the first Greek team to win the European Basketball Cup.
June 11 » Lloyd J. Old identified the first cell surface antigens that could differentiate among different cell types.
July 1 » The Treaty on the Non-Proliferation of Nuclear Weapons is signed in Washington, D.C., London and Moscow by sixty-two countries.
October 14 » Jim Hines becomes the first man ever to break the so-called "ten-second barrier" in the 100-meter sprint with a time of 9.95 seconds.
October 31 » Vietnam War October surprise: Citing progress with the Paris peace talks, US President Lyndon B. Johnson announces to the nation that he has ordered a complete cessation of "all air, naval, and artillery bombardment of North Vietnam" effective November 1.
December 25 » Apollo program: Apollo 8 performs the first successful Trans-Earth injection (TEI) maneuver, sending the crew and spacecraft on a trajectory back to Earth from Lunar orbit.
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/I70981.php : accessed February 20, 2026), "Martinus Jacobus de Kok (1897-1968)".
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