The temperature on June 13, 1935 was between 11.8 °C and 19.9 °C and averaged 16.0 °C. There was 0.2 mm of rain during 0.1 hours. There was 9.4 hours of sunshine (56%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 26 » Robert Watson-Watt carries out a demonstration near Daventry which leads directly to the development of radar in the United Kingdom.
February 28 » DuPont scientist Wallace Carothers invents nylon.
April 1 » India's central banking institution, The Reserve Bank of India, is formed.
June 10 » Chaco War ends: A truce is called between Bolivia and Paraguay who had been fighting since 1932.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
December 9 » The Downtown Athletic Club Trophy, later renamed the Heisman Trophy, is awarded for the first time. The winner is halfback Jay Berwanger of the University of Chicago.
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I83010.php : accessed February 13, 2026), "OG van der Zwan (1935-1935)".
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