January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
March 1 » Henri Becquerel discovers radioactive decay.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
Day of death November 11, 1963
The temperature on November 11, 1963 was between 9.6 °C and 13.6 °C and averaged 11.4 °C. There was 5.1 mm of rain during 3.4 hours. There was -0.1 hours of sunshine (0%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
May 22 » Greek left-wing politician Grigoris Lambrakis is shot in an assassination attempt, and dies five days later.
July 1 » ZIP codes are introduced for United States mail.
July 19 » Joe Walker flies a North American X-15 to a record altitude of 106,010 meters (347,800 feet) on X-15 Flight 90. Exceeding an altitude of 100km, this flight qualifies as a human spaceflight under international convention.
July 26 » The Organisation for Economic Co-operation and Development votes to admit Japan.
November 2 » South Vietnamese President Ngô Đình Diệm is assassinated following a military coup.
November 29 » Trans-Canada Air Lines Flight 831 crashes shortly after takeoff from Montreal-Dorval International Airport, killing all 118 people on board.
When copying data from this family tree, please include a reference to the origin: C. Switzar, "Onze voorouders", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-switzar/I24.php : accessed February 19, 2026), "Paulus Johannes Koerten (1896-1963)".
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