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
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 23 » The New York Public Library is dedicated.
June 22 » George V and Mary of Teck are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
October 5 » The Kowloon–Canton Railway commences service.
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
February 18 » Second Sino-Japanese War: During the Nanking Massacre, the Nanking Safety Zone International Committee is renamed "Nanking International Rescue Committee", and the safety zone in place for refugees falls apart.
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
June 24 » Pieces of a meteorite land near Chicora, Pennsylvania. The meteorite is estimated to have weighed 450metric tons when it hit the Earth's atmosphere and exploded.
July 10 » Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
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.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
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 13, 2026), "Hendrik de Haan (1911-)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.