The temperature on July 17, 1953 was between 14.4 °C and 22.7 °C and averaged 17.8 °C. There was 4.0 mm of rain during 3.3 hours. There was 4.5 hours of sunshine (28%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 14 » Josip Broz Tito is inaugurated as the first President of Yugoslavia.
April 24 » Winston Churchill is knighted by Queen Elizabeth II.
May 25 » Nuclear weapons testing: At the Nevada Test Site, the United States conducts its first and only nuclear artillery test.
October 1 » A Mutual Defense Treaty Between the United States and the Republic of Korea is concluded in Washington, D.C.
November 21 » The Natural History Museum, London announces that the "Piltdown Man" skull, initially believed to be one of the most important fossilized hominid skulls ever found, is a hoax.
December 9 » Red Scare: General Electric announces that all communist employees will be discharged from the company.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I19013.php : accessed January 18, 2026), "Petronella Dorothea Pretorius (1920-1953)".
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