The temperature on April 19, 1911 was between 9.7 °C and 15.3 °C and averaged 12.9 °C. There was 0.2 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
Day of marriage April 23, 1938
The temperature on April 23, 1938 was between 5.1 °C and 12.6 °C and averaged 7.8 °C. There was 0.4 mm of rain during 0.5 hours. There was 4.3 hours of sunshine (30%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 28 » The World Land Speed Record on a public road is broken by Rudolf Caracciola in the Mercedes-Benz W195 at a speed of 432.7 kilometres per hour (268.9mph).
February 11 » BBC Television produces the world's first ever science fiction television programme, an adaptation of a section of the Karel Čapek play R.U.R., that coined the term "robot".
March 18 » Mexico creates Pemex by expropriating all foreign-owned oil reserves and facilities.
June 23 » The Civil Aeronautics Act is signed into law, forming the Civil Aeronautics Authority in the United States.
July 10 » Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
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/I135802.php : accessed October 5, 2026), "Hendrik de Haan (1911-)".
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