The temperature on August 11, 1911 was between 15.6 °C and 30.8 °C and averaged 23.7 °C. There was 13.0 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
June 22 » George V and Mary of Teck are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
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 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
Day of marriage October 21, 1937
The temperature on October 21, 1937 was between 2.1 °C and 13.4 °C and averaged 8.1 °C. There was 0.2 mm of rain. There was 3.3 hours of sunshine (32%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 19 » Howard Hughes sets a new air record by flying from Los Angeles to New York City in 7 hours, 28 minutes, 25 seconds.
February 16 » Wallace H. Carothers receives a United States patent for nylon.
February 21 » The League of Nations bans foreign national "volunteers" in the Spanish Civil War.
April 9 » The Kamikaze arrives at Croydon Airport in London. It is the first Japanese-built aircraft to fly to Europe.
June 15 » A German expedition led by Karl Wien loses sixteen members in an avalanche on Nanga Parbat. It is the worst single disaster to occur on an 8000m peak.
August 1 » Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor.
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/I201934.php : accessed February 12, 2026), "Alberdina Groenewold (1911-)".
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