The temperature on January 29, 1911 was between -1.8 °C and 5.9 °C and averaged 3.2 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of marriage May 23, 1936
The temperature on May 23, 1936 was between 2.1 °C and 16.7 °C and averaged 10.3 °C. There was 8.0 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
February 26 » In the February 26 Incident, young Japanese military officers attempt to stage a coup against the government.
March 1 » The Hoover Dam is completed.
April 15 » First day of the Arab revolt in Mandatory Palestine.
July 6 » A major breach of the Manchester Bolton & Bury Canal in England sends millions of gallons of water cascading 200 feet (61m) into the River Irwell.
November 12 » In California, the San Francisco–Oakland Bay Bridge opens to traffic.
December 21 » First flight of the Junkers Ju 88 multi-role combat aircraft.
Day of death October 5, 1971
The temperature on October 5, 1971 was between 1.0 °C and 14.3 °C and averaged 7.6 °C. There was 9.7 hours of sunshine (85%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
January 31 » The Winter Soldier Investigation, organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.
February 8 » South Vietnamese ground troops launch an incursion into Laos to try to cut off the Ho Chi Minh trail and stop communist infiltration.
February 27 » Doctors in the first Dutch abortion clinic (the Mildredhuis in Arnhem) start performing artificially-induced abortions.
May 1 » Amtrak (the National Railroad Passenger Corporation) takes over operation of U.S. passenger rail service.
August 10 » The Society for American Baseball Research is founded in Cooperstown, New York.
October 27 » The Democratic Republic of the Congo is renamed Zaire.
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/I121199.php : accessed January 1, 2026), "Sietze Zijlstra (1911-1971)".
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