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.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage September 9, 1926
The temperature on September 9, 1926 was between 10.8 °C and 19.9 °C and averaged 15.6 °C. There was 0.4 mm of rain. There was 0.6 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
May 18 » Evangelist Aimee Semple McPherson disappears in Venice, California.
May 25 » Sholom Schwartzbard assassinates Symon Petliura, the head of the government of the Ukrainian People's Republic, which is in government-in-exile in Paris.
August 6 » Gertrude Ederle becomes the first woman to swim across the English Channel.
September 8 » Germany is admitted to the League of Nations.
November 15 » The NBC radio network opens with 24 stations.
November 25 » The deadliest November tornado outbreak in U.S. history kills 76 people and injures more than 400.
Day of death December 6, 1969
The temperature on December 6, 1969 was between -5.4 °C and 1.0 °C and averaged -1.1 °C. There was 0.2 mm of rain. There was 2.4 hours of sunshine (30%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
January 25 » Brazilian Army captain Carlos Lamarca deserts in order to fight against the military dictatorship, taking with him ten machine guns and 63 rifles.
January 30 » The Beatles' last public performance, on the roof of Apple Records in London. The impromptu concert is broken up by the police.
March 16 » A Viasa McDonnell Douglas DC-9 crashes in Maracaibo, Venezuela, killing 155.
April 4 » Dr. Denton Cooley implants the first temporary artificial heart.
April 17 » Sirhan Sirhan is convicted of assassinating Robert F. Kennedy.
June 3 » Melbourne–Evans collision: off the coast of South Vietnam, the Australian aircraft carrier HMASMelbourne cuts the U.S. Navy destroyer USSFrank E. Evans in half.
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/I6837.php : accessed February 19, 2026), "Adrianus Beerendonk (1897-1969)".
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