The temperature on August 13, 1963 was between 9.5 °C and 19.7 °C and averaged 14.6 °C. There was 7.4 mm of rain during 4.0 hours. There was 5.7 hours of sunshine (38%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 5 » The European Court of Justice's ruling in Van Gend en Loos v Nederlandse Administratie der Belastingen establishes the principle of direct effect, one of the most important, if not the most important, decisions in the development of European Union law.
April 26 » In Libya, amendments to the constitution transform Libya (United Kingdom of Libya) into one national unity (Kingdom of Libya) and allows for female participation in elections.
May 15 » Project Mercury: The launch of the final Mercury mission, Mercury-Atlas 9 with astronaut Gordon Cooper on board. He becomes the first American to spend more than a day in space, and the last American to go into space alone.
August 15 » Execution of Henry John Burnett, the last man to be hanged in Scotland.
November 24 » Lee Harvey Oswald, the assassin of President John F. Kennedy, is killed by Jack Ruby.
November 29 » U.S. President Lyndon B. Johnson establishes the Warren Commission to investigate the assassination of President John F. Kennedy.
When copying data from this family tree, please include a reference to the origin: Rob Heesters, "Family tree Rob Heesters", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-rob-heesters/I656.php : accessed February 23, 2026), "Jeroen den Bak (1963-)".
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