February 9 » William G. Morgan creates a game called Mintonette, which soon comes to be referred to as volleyball.
February 24 » Revolution breaks out in Baire, a town near Santiago de Cuba, beginning the Cuban War of Independence, that ends with the Spanish–American War in 1898.
March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of marriage April 28, 1921
The temperature on April 28, 1921 was between 8.4 °C and 20.1 °C and averaged 14.4 °C. There was 11.9 hours of sunshine (81%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
July 11 » Former president of the United States William Howard Taft is sworn in as 10th chief justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
October 26 » The Chicago Theatre opens.
October 29 » The Link River Dam, a part of the Klamath Reclamation Project, is completed.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
Day of death May 21, 1972
The temperature on May 21, 1972 was between 8.2 °C and 18.6 °C and averaged 12.9 °C. There was 0.2 mm of rain during 0.4 hours. There was 9.6 hours of sunshine (60%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
March 1 » The Thai province of Yasothon is created after being split off from the Ubon Ratchathani Province.
July 21 » The Troubles: Bloody Friday: The Provisional IRA detonate 22 bombs in central Belfast, Northern Ireland, United Kingdom in the space of 80 minutes, killing nine and injuring 130.
September 5 » Munich massacre: A Palestinian terrorist group called "Black September" attacks and takes hostage 11 Israeli athletes at the Munich Olympic Games. Two die in the attack and nine are murdered the following day.
September 6 » Munich massacre: Nine Israeli athletes die (along with a German policeman) at the hands of the Palestinian "Black September" terrorist group after being taken hostage at the Munich Olympic Games. Two other Israeli athletes were slain in the initial attack the previous day.
November 29 » Atari releases Pong, the first commercially successful video game.
December 13 » Apollo program: Eugene Cernan and Harrison Schmitt begin the third and final extra-vehicular activity (EVA) or "Moonwalk" of Apollo 17. To date they are the last humans to set foot on the Moon.
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/I69366.php : accessed January 7, 2026), "Maria Gijsbertha de Klijn (1895-1972)".
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