The temperature on August 19, 1911 was between 11.1 °C and 22.3 °C and averaged 17.0 °C. There was 8.6 hours of sunshine (59%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
October 5 » The Kowloon–Canton Railway commences service.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
Day of marriage April 25, 1938
The temperature on April 25, 1938 was between 3.7 °C and 13.1 °C and averaged 7.8 °C. There was 0.4 mm of rain during 0.3 hours. There was 5.2 hours of sunshine (36%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 4 » Adolf Hitler appoints himself as head of the Armed Forces High Command.
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".
April 10 » The 1938 German parliamentary election and referendum seeks approval for a single list of Nazi candidates and the recent annexation of Austria.
July 31 » Archaeologists discover engraved gold and silver plates from King Darius the Great in Persepolis.
September 21 » The Great Hurricane of 1938 makes landfall on Long Island in New York. The death toll is estimated at 500–700 people.
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/I208246.php : accessed October 15, 2026), "Willem Swieringa (1911-)".
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