The temperature on November 16, 1912 was between 5.7 °C and 8.6 °C and averaged 7.3 °C. There was 0.5 mm of rain. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
December 19 » William Van Schaick, captain of the steamship General Slocum which caught fire and killed over one thousand people, is pardoned by U.S. President William Howard Taft after 3⁄2 years in Sing Sing prison.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage May 20, 1938
The temperature on May 20, 1938 was between 2.3 °C and 13.7 °C and averaged 8.6 °C. There was 0.1 mm of rain during 0.1 hours. There was 5.6 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
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 12 » Anschluss: German troops occupy and absorb Austria.
June 11 » Second Sino-Japanese War: The Battle of Wuhan starts.
September 21 » The Great Hurricane of 1938 makes landfall on Long Island in New York. The death toll is estimated at 500–700 people.
October 31 » Great Depression: In an effort to restore investor confidence, the New York Stock Exchange unveils a fifteen-point program aimed to upgrade protection for the investing public.
December 13 » The Holocaust: The Neuengamme concentration camp opens in the Bergedorf district of Hamburg, Germany.
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/I140103.php : accessed October 20, 2026), "Egbert Klaas Kooistra (1912-)".
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