March 22 » Before the Société pour L'Encouragement à l'Industrie, brothers Auguste and Louis Lumière demonstrate movie film technology publicly for the first time.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of death November 20, 1967
The temperature on November 20, 1967 was between -1.4 °C and 8.2 °C and averaged 3.8 °C. There was 7.1 hours of sunshine (83%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
April 27 » Expo 67 officially opens in Montreal, Quebec, Canada with a large opening ceremony broadcast around the world. It opens to the public the next day.
September 3 » Dagen H in Sweden: Traffic changes from driving on the left to driving on the right overnight.
November 19 » The establishment of TVB, the first wireless commercial television station in Hong Kong.
November 29 » Vietnam War: U.S. Secretary of Defense Robert McNamara announces his resignation.
December 3 » At Groote Schuur Hospital in Cape Town, South Africa, a transplant team headed by Christiaan Barnard carries out the first heart transplant on a human (53-year-old Louis Washkansky).
December 19 » Harold Holt, the Prime Minister of Australia, is officially presumed dead.
When copying data from this family tree, please include a reference to the origin: Han Eman, "Family tree Eman/Swart-Radstok/Attevelt", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eman/I617.php : accessed January 6, 2026), "Marinus van Groningen (1895-1967)".
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