The temperature on May 21, 1956 was between 0.1 °C and 16.8 °C and averaged 10.1 °C. There was 10.7 hours of sunshine (67%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 1 » Sudan achieves independence from Egypt and the United Kingdom.
March 1 » Formation of the East German Nationale Volksarmee.
March 1 » The International Air Transport Association finalizes a draft of the Radiotelephony spelling alphabet for the International Civil Aviation Organization.
October 17 » The first commercial nuclear power station is officially opened by Queen Elizabeth II in Sellafield, England.
October 19 » The Soviet Union and Japan sign a Joint Declaration, officially ending the state of war between the two countries that had existed since August 1945.
October 31 » Suez Crisis: The United Kingdom and France begin bombing Egypt to force the reopening of the Suez Canal.
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The Family tree Doppenberg publication was prepared by Henk Doppenberg (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Henk Doppenberg, "Family tree Doppenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-doppenberg/I16804.php : accessed January 6, 2026), "Cornelis van Dijk (1911-1956)".
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