The temperature on May 15, 1911 was between 9.1 °C and 19.1 °C and averaged 14.3 °C. There was 8.7 hours of sunshine (56%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
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.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
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.
Day of death December 25, 1968
The temperature on December 25, 1968 was between -1.2 °C and 4.5 °C and averaged 2.5 °C. There was 0.1 mm of rain during 0.4 hours. The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
February 16 » In Haleyville, Alabama, the first 9-1-1 emergency telephone system goes into service.
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 4 » A.E.K. Athens B.C. becomes the first Greek team to win the European Basketball Cup.
May 26 » H-dagurinn in Iceland: Traffic changes from driving on the left to driving on the right overnight
May 30 » Charles de Gaulle reappears publicly after his flight to Baden-Baden, Germany, and dissolves the French National Assembly by a radio appeal. Immediately after, less than one million of his supporters march on the Champs-Élysées in Paris. This is the turning point of May 1968 events in France.
September 11 » Air France Flight 1611 crashes off Nice, France, killing 89 passengers and six crew.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I67241.php : accessed January 27, 2026), "Jan Vos (1911-1968)".
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