The temperature on August 11, 1953 was between 8.6 °C and 23.8 °C and averaged 18.1 °C. There was 13.4 hours of sunshine (90%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
February 11 » Cold War: U.S. President Dwight D. Eisenhower denies all appeals for clemency for Julius and Ethel Rosenberg.
March 1 » Soviet Premier Joseph Stalin suffers a stroke and collapses; he dies four days later.
April 29 » The first U.S. experimental 3D television broadcast showed an episode of Space Patrol on Los Angeles ABC affiliate KECA-TV.
May 25 » The first public television station in the United States officially begins broadcasting as KUHT from the campus of the University of Houston.
August 12 » The 7.2 Ms Ionian earthquake shakes the southern Ionian Islands with a maximum Mercalli intensity of X (Extreme). Between 445 and 800 people are killed.
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.
When copying data from this family tree, please include a reference to the origin: Paul Potten, "Family tree Potten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-potten/I333.php : accessed January 22, 2026), "Anna Maria Henriette Rongen (1953-)".
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