The temperature on October 5, 1911 was between 7.1 °C and 11.9 °C and averaged 9.8 °C. There was 1.2 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
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 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 May 21, 1938
The temperature on May 21, 1938 was between 6.5 °C and 13.3 °C and averaged 9.7 °C. There was 4.1 mm of rain during 5.2 hours. There was 0.6 hours of sunshine (4%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
March 27 » Second Sino-Japanese War: The Battle of Taierzhuang begins, resulting several weeks later in the war's first major Chinese victory over Japan.
June 7 » The Douglas DC-4E makes its first test flight.
June 25 » Dr. Douglas Hyde is inaugurated as the first President of Ireland.
September 27 » The ocean liner Queen Elizabeth is launched in Glasgow.
September 30 » Britain, France, Germany and Italy sign the Munich Agreement, whereby Germany annexes the Sudetenland region of Czechoslovakia.
November 9 » The Nazi German diplomat Ernst vom Rath dies from gunshot wounds by Herschel Grynszpan, an act which the Nazis used as an excuse to instigate the 1938 national pogrom, also known as Kristallnacht.
Day of death September 2, 2004
The temperature on September 2, 2004 was between 8.0 °C and 23.3 °C and averaged 15.7 °C. There was 11.3 hours of sunshine (83%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Tuesday, May 27, 2003 to Friday, July 7, 2006 the cabinet Balkenende II, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
January 3 » Flash Airlines Flight 604 crashes into the Red Sea, resulting in 148 deaths, making it one of the deadliest aviation accidents in Egyptian history.
February 2 » Swiss tennis player Roger Federer becomes the No. 1 ranked men's singles player, a position he will hold for a record 237 weeks.
February 14 » In a suburb of Moscow, Russia, the roof of the Transvaal water park collapses, killing more than 25 people, and wounding more than 100 others.
July 4 » The cornerstone of the Freedom Tower is laid on the World Trade Center site in New York City.
August 13 » One hundred fifty-six Congolese Tutsi refugees are massacred at the Gatumba refugee camp in Burundi.
September 3 » Beslan school siege results in over 330 fatalities, including 186 children.
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/I109910.php : accessed October 15, 2026), "Trijntje Helder (1911-2004)".
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