The temperature on April 5, 1911 was between -5.5 °C and 1.7 °C and averaged -2.2 °C. There was 7.7 hours of sunshine (58%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
September 24 » His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of death August 18, 1970
The temperature on August 18, 1970 was between 11.8 °C and 18.7 °C and averaged 14.7 °C. There was 5.1 hours of sunshine (35%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 13 » An oxygen tank aboard the Apollo 13 Service Module explodes, putting the crew in great danger and causing major damage to the Apollo command and service module (codenamed "Odyssey") while en route to the Moon.
May 14 » Andreas Baader is freed from custody by Ulrike Meinhof, Gudrun Ensslin and others, a pivotal moment in the formation of the Red Army Faction.
August 7 » California judge Harold Haley is taken hostage in his courtroom and killed during an effort to free George Jackson from police custody.
September 5 » Jochen Rindt becomes the only driver to posthumously win the Formula One World Drivers' Championship (in 1970), after being killed in practice for the Italian Grand Prix.
September 11 » The Dawson's Field hijackers release 88 of their hostages. The remaining hostages, mostly Jews and Israeli citizens, are held until September 25.
October 16 » Canadian Prime Minister Pierre Trudeau invokes the War Measures Act during the October Crisis.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I138403.php : accessed December 26, 2025), "Hindrik Huizinga (1911-1970)".
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