The temperature on June 28, 1911 was between 7.9 °C and 19.1 °C and averaged 14.4 °C. There was 4.8 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
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 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
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.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage March 30, 1940
The temperature on March 30, 1940 was between 0.1 °C and 4.8 °C and averaged 3.0 °C. There was 3.0 mm of rain during 5.7 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 29 » 12th Academy Awards: For her performance as "Mammy" in Gone with the Wind, Hattie McDaniel becomes the first African American to win an Academy Award.
May 28 » World War II: Norwegian, French, Polish and British forces recapture Narvik in Norway. This is the first allied infantry victory of the War.
August 8 » The "Aufbau Ost" directive is signed by Wilhelm Keitel.
August 19 » First flight of the B-25 Mitchell medium bomber.
September 9 » Treznea Massacre in Transylvania.
September 12 » An explosion at the Hercules Powder Company plant in Kenvil, New Jersey kills 51 people and injures over 200.
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/I82319.php : accessed October 15, 2026), "Wytze "William" Tjoelker (1911-1983)".
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