The temperature on April 23, 1963 was between 5.6 °C and 18.0 °C and averaged 12.3 °C. There was 8.8 hours of sunshine (61%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 13 » Coup d'état in Togo results in the assassination of president Sylvanus Olympio.
June 20 » Following the Cuban Missile Crisis, the Soviet Union and the United States sign an agreement to establish the so-called "red telephone" link between Washington and Moscow.
July 26 » The Organisation for Economic Co-operation and Development votes to admit Japan.
August 22 » X-15 Flight 91 reaches the highest altitude of the X-15 program (107.96km (67.08mi) (354,200 feet)).
October 22 » A BAC One-Eleven prototype airliner crashes in UK with the loss of all on board.
December 10 » An assassination attempt on the British High Commissioner in Aden kills two people and wounds dozens more.
When copying data from this family tree, please include a reference to the origin: Gijsbertus Cornelis (Bert) Severijn, "Family tree Severijn", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-severijn/I12405.php : accessed February 15, 2026), "Barbara Dawn Smith (1963-)".
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