The temperature on January 21, 1911 was between -2.9 °C and 0.3 °C and averaged -1.5 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 23 » The New York Public Library is dedicated.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
Day of marriage July 23, 1937
The temperature on July 23, 1937 was between 12.5 °C and 17.1 °C and averaged 15.1 °C. There was 1.7 mm of rain during 3.8 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 23 » The trial of the anti-Soviet Trotskyist center sees seventeen mid-level Communists accused of sympathizing with Leon Trotsky and plotting to overthrow Joseph Stalin's regime.
February 11 » The Flint sit-down strike ends when General Motors recognizes the United Auto Workers trade union.
May 12 » The Duke and Duchess of York are crowned as King George VI and Queen Elizabeth of the United Kingdom of Great Britain and Northern Ireland in Westminster Abbey.
July 6 » Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against the Nationalists to relieve pressure on Madrid.
September 5 » Spanish Civil War: Llanes falls to the Nationalists following a one-day siege.
November 9 » Second Sino-Japanese War: The Chinese Army withdraws from the Battle of Shanghai.
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/I140087.php : accessed October 19, 2026), "Kornelis Jochem Schaafsma (1911-)".
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