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
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 24 » Marriage of Princess Alexandra of Kent to Angus Ogilvy at Westminster Abbey in London.
June 21 » Cardinal Giovanni Battista Montini is elected as Pope Paul VI.
August 31 » Crown Colony of North Borneo (now Sabah) achieves self governance.
October 7 » President Kennedy signs the ratification of the Partial Nuclear Test Ban Treaty.
December 26 » The Beatles' "I Want to Hold Your Hand" and "I Saw Her Standing There" are released in the United States, marking the beginning of Beatlemania on an international level.
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/I13314.php : accessed March 3, 2026), "Birgit Munz (1963-)".
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