The temperature on September 22, 1911 was between 5.4 °C and 18.3 °C and averaged 11.4 °C. There was 7.9 hours of sunshine (64%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 23 » The New York Public Library is dedicated.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of death September 1, 1963
The temperature on September 1, 1963 was between 11.2 °C and 21.0 °C and averaged 16.2 °C. There was 0.3 mm of rain during 0.3 hours. There was 9.8 hours of sunshine (72%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
February 8 » Travel, financial and commercial transactions by United States citizens to Cuba are made illegal by the John F. Kennedy administration.
February 27 » The Dominican Republic receives its first democratically elected president, Juan Bosch, since the end of the dictatorship led by Rafael Trujillo.
April 24 » Marriage of Princess Alexandra of Kent to Angus Ogilvy at Westminster Abbey in London.
May 11 » Racist bombings in Birmingham, Alabama, disrupt nonviolence in the Birmingham campaign and precipitate a crisis involving federal troops.
June 21 » Cardinal Giovanni Battista Montini is elected as Pope Paul VI.
August 5 » Cold War: The United States, the United Kingdom, and the Soviet Union sign the Partial Nuclear Test Ban Treaty.
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/I96805.php : accessed October 15, 2026), "Jan Koster (1911-1963)".
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