The temperature on July 5, 1953 was between 12.0 °C and 23.3 °C and averaged 17.5 °C. There was 12.0 hours of sunshine (72%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 25 » Nuclear weapons testing: At the Nevada Test Site, the United States conducts its first and only nuclear artillery test.
August 10 » First Indochina War: The French Union withdraws its forces from Operation Camargue against the Viet Minh in central Vietnam.
October 1 » Andhra State is formed, consisting of a Telugu-speaking area carved out of India's Madras State.
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 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: Frits Nijhoff, "Family tree F. Nijhoff", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-f-nijhoff/I94.php : accessed August 9, 2025), "Henk Nijhoff Henk (1953-)".
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