The temperature on March 29, 1911 was between 4.9 °C and 18.6 °C and averaged 11.6 °C. There was 7.3 hours of sunshine (57%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
December 27 » "Jana Gana Mana", the national anthem of India, is first sung in the Calcutta Session of the Indian National Congress.
Day of marriage August 17, 1935
The temperature on August 17, 1935 was between 9.1 °C and 20.3 °C and averaged 15.1 °C. There was 1.1 mm of rain during 0.9 hours. There was 1.2 hours of sunshine (8%). The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
February 12 » USSMacon, one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.
May 31 » A 7.7 Mw earthquake destroys Quetta in modern-day Pakistan killing 40,000.
June 10 » Chaco War ends: A truce is called between Bolivia and Paraguay who had been fighting since 1932.
June 10 » Dr. Robert Smith takes his last drink, and Alcoholics Anonymous is founded in Akron, Ohio, United States, by him and Bill Wilson.
June 12 » A ceasefire is negotiated between Bolivia and Paraguay, ending the Chaco War.
September 15 » The Nuremberg Laws deprive German Jews of citizenship.
Day of death September 6, 1957
The temperature on September 6, 1957 was between 10.7 °C and 20.1 °C and averaged 15.2 °C. There was 7.4 hours of sunshine (56%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: W.H.W. Weber, "Weber stamboom", database, Genealogy Online (https://www.genealogieonline.nl/weber-stamboom/P1342.php : accessed January 22, 2026), "Petronella Maria Koene (1911-1957)".
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