The temperature on June 12, 1953 was between 9.2 °C and 22.3 °C and averaged 16.1 °C. There was 10.1 hours of sunshine (61%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
February 28 » James Watson and Francis Crick announce to friends that they have determined the chemical structure of DNA; the formal announcement takes place on April 25 following publication in April's Nature (pub. April 2).
May 4 » Ernest Hemingway wins the Pulitzer Prize for The Old Man and the Sea.
June 18 » The Egyptian revolution of 1952 ends with the overthrow of the Muhammad Ali dynasty and the declaration of the Republic of Egypt.
August 17 » Addiction: First meeting of Narcotics Anonymous takes place, in Southern California.
September 12 » U.S. Senator and future President John Fitzgerald Kennedy marries Jacqueline Lee Bouvier at St. Mary's Church in Newport, Rhode Island.
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: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I30.php : accessed October 1, 2026), "Wilfried Hendrik Annie van Weerdt (1953-2019)".
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