The temperature on June 26, 1911 was between 8.3 °C and 13.8 °C and averaged 11.7 °C. There was 2.9 mm of rain. There was 1.6 hours of sunshine (10%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
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.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
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 October 24, 1928
The temperature on October 24, 1928 was between 6.6 °C and 16.2 °C and averaged 11.9 °C. There was 0.3 mm of rain. There was 0.6 hours of sunshine (6%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 1 » Boris Bazhanov defects through Iran. He is the only assistant of Joseph Stalin's secretariat to have defected from the Eastern Bloc.
January 31 » Leon Trotsky is exiled to Alma-Ata.
March 12 » In California, the St. Francis Dam fails; the resulting floods kill 431 people.
June 18 » Aviator Amelia Earhart becomes the first woman to fly in an aircraft across the Atlantic Ocean (she is a passenger; Wilmer Stultz is the pilot and Lou Gordon the mechanic).
September 28 » Alexander Fleming notices a bacteria-killing mold growing in his laboratory, discovering what later became known as penicillin.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
When copying data from this family tree, please include a reference to the origin: G. Spierenburg, "Genealogy Spierenburg", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-spierenburg/I1069733177.php : accessed May 11, 2024), "Hendrika Maria Sierhuis (1911-)".
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