January 30 » The first Anglo-Japanese Alliance is signed in London.
February 27 » Second Boer War: Australian soldiers Harry "Breaker" Morant and Peter Handcock are executed in Pretoria after being convicted of war crimes.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
December 28 » The Syracuse Athletic Club defeated the New York Philadelphians, 5–0, in the first indoor professional football game, which was held at Madison Square Garden.
Day of marriage October 4, 1927
The temperature on October 4, 1927 was between 1.4 °C and 15.2 °C and averaged 8.1 °C. There was 0.1 mm of rain. There was 5.8 hours of sunshine (51%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
May 22 » Near Xining, China, an 8.3 magnitude earthquake causes 200,000 deaths in one of the world's most destructive earthquakes.
June 13 » Aviator Charles Lindbergh receives a ticker tape parade down 5th Avenue in New York City.
July 15 » Massacre of July 15, 1927: Eighty-nine protesters are killed by the Austrian police in Vienna.
September 22 » Jack Dempsey loses the "Long Count" boxing match to Gene Tunney.
October 25 » The Italian luxury liner SS Principessa Mafalda sinks off the coast of Brazil, killing 314.
Day of death October 21, 2001
The temperature on October 21, 2001 was between 12.2 °C and 15.5 °C and averaged 13.9 °C. There was 0.1 mm of rain during 0.3 hours. There was 0.2 hours of sunshine (2%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 23 » Five people attempt to set themselves on fire in Beijing's Tiananmen Square, an act that many people later claim is staged by the Communist Party of China to frame Falun Gong and thus escalate their persecution.
February 15 » The first draft of the complete human genome is published in Nature.
June 1 » Dolphinarium discotheque massacre: A Hamas suicide bomber kills 21 at a disco in Tel Aviv.
July 21 » At the conclusion of a fireworks display on Okura Beach in Akashi, Hyōgo, Japan, 11 people are killed and more than 120 are injured when a pedestrian footbridge connecting the beach to JR Asagiri Station becomes overcrowded and people leaving the event fall down in a domino effect.
September 9 » Ahmad Shah Massoud, leader of the Northern Alliance, is assassinated in Afghanistan by two al-Qaeda assassins who claimed to be Arab journalists wanting an interview.
September 18 » First mailing of anthrax letters from Trenton, New Jersey in the 2001 anthrax attacks.
When copying data from this family tree, please include a reference to the origin: Rob van Koert, "Family tree Van Koert", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-koert/I141.php : accessed February 24, 2026), "Maria Mathilde Josephina Aarts (1902-2001)".
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