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
March 3 » A De Havilland Comet (Canadian Pacific Air Lines) crashes in Karachi, Pakistan, killing 11.
April 25 » Francis Crick and James Watson publish "Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid" describing the double helix structure of DNA.
May 25 » The first public television station in the United States officially begins broadcasting as KUHT from the campus of the University of Houston.
October 29 » BCPA Flight 304 DC-6 crashes near San Francisco.
November 30 » Edward Mutesa II, the kabaka (king) of Buganda is deposed and exiled to London by Sir Andrew Cohen, Governor of Uganda.
December 24 » Tangiwai disaster: In New Zealand's North Island, at Tangiwai, a railway bridge is damaged by a lahar and collapses beneath a passenger train, killing 151 people.
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 20, 2026), "Petronella Dorothea Pretorius (1920-1953)".
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