The temperature on April 11, 1909 was between -2.0 °C and 18.3 °C and averaged 8.9 °C. There was 0.2 mm of rain. There was 10.0 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 25 » Richard Strauss's opera Elektra receives its debut performance at the Dresden State Opera.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
September 30 » The Cunard Line's RMS Mauretania makes a record-breaking westbound crossing of the Atlantic, that will not be bettered for 20 years.
October 16 » William Howard Taft and Porfirio Díaz hold the first summit between a U.S. and a Mexican president. They narrowly escape assassination.
October 26 » An Jung-geun assassinates Japan's Resident-General of Korea.
December 10 » Selma Lagerlöf becomes the first female writer to win the Nobel Prize in Literature.
Day of marriage October 15, 1938
The temperature on October 15, 1938 was between 6.8 °C and 16.4 °C and averaged 10.7 °C. There was 0.1 mm of rain. There was 5.7 hours of sunshine (53%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
July 3 » United States President Franklin D. Roosevelt dedicates the Eternal Light Peace Memorial and lights the eternal flame at Gettysburg Battlefield.
October 10 » Abiding by the Munich Agreement, Czechoslovakia completes its withdrawal from the Sudetenland.
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
December 16 » Adolf Hitler institutes the Cross of Honour of the German Mother.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I528.php : accessed March 7, 2026), "Renier van Knippenberg (1909-)".
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