The temperature on May 25, 1909 was between 8.6 °C and 22.6 °C and averaged 15.1 °C. There was 17.8 mm of rain. There was 5.9 hours of sunshine (37%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
January 9 » Ernest Shackleton, leading the Nimrod Expedition to the South Pole, plants the British flag 97 nautical miles (180km; 112mi) from the South Pole, the farthest anyone had ever reached at that time.
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
April 9 » The U.S. Congress passes the Payne–Aldrich Tariff Act.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
July 16 » Persian Constitutional Revolution: Mohammad Ali Shah Qajar is forced out as Shah of Persia and is replaced by his son Ahmad Shah Qajar.
Day of death November 23, 1968
The temperature on November 23, 1968 was between 2.5 °C and 10.0 °C and averaged 6.4 °C. There was 8.7 mm of rain during 6.3 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 17 » As a result of nerve gas testing by the U.S. Army Chemical Corps in Skull Valley, Utah, over 6,000 sheep are found dead.
April 6 » In Richmond, Indiana's downtown district, a double explosion kills 41 and injures 150.
September 11 » Air France Flight 1611 crashes off Nice, France, killing 89 passengers and six crew.
October 20 » Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.
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: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I118022.php : accessed October 23, 2026), "Klaas Zwaagmans (1909-1968)".
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