The temperature on June 30, 1910 was between 10.7 °C and 16.7 °C and averaged 13.2 °C. There was 2.3 mm of rain. There was 5.0 hours of sunshine (30%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 1 » The deadliest avalanche in United States history buries a Great Northern Railway train in northeastern King County, Washington, killing 96 people.
March 8 » French aviator Raymonde de Laroche becomes the first woman to receive a pilot's license.
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
August 29 » The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea.
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
Day of marriage June 20, 1940
The temperature on June 20, 1940 was between 10.8 °C and 22.7 °C and averaged 17.0 °C. There was 15.2 hours of sunshine (91%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 9 » World War II: The German submarine U-9 sinks the French coastal submarine Doris near Den Helder.
June 22 » World War II: France is forced to sign the Second Compiègne armistice with Germany, in the same railroad car in which the Germans signed the Armistice in 1918.
August 5 » World War II: The Soviet Union formally annexes Latvia.
September 6 » King Carol II of Romania abdicates and is succeeded by his son Michael. General Ion Antonescu becomes the Conducător of Romania.
October 31 » World War II: The Battle of Britain ends: The United Kingdom prevents a possible German invasion.
December 14 » Plutonium (specifically Pu-238) is first isolated at Berkeley, California.
Day of death May 6, 1981
The temperature on May 6, 1981 was between 1.0 °C and 15.3 °C and averaged 9.5 °C. There was 0.7 mm of rain during 2.0 hours. There was 1.0 hours of sunshine (7%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
February 23 » In Spain, Antonio Tejero attempts a coup d'état by capturing the Spanish Congress of Deputies.
April 27 » Xerox PARC introduces the computer mouse.
May 21 » The Italian government releases the membership list of Propaganda Due, an illegal pseudo-Masonic lodge that was implicated in numerous Italian crimes and mysteries.
August 3 » Senegalese opposition parties, under the leadership of Mamadou Dia, launch the Antiimperialist Action Front – Suxxali Reew Mi.
August 25 » Voyager 2 spacecraft makes its closest approach to Saturn.
December 18 » First flight of the Russian heavy strategic bomber Tu-160, the world's largest combat aircraft, largest supersonic aircraft and largest variable-sweep wing aircraft built.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I168144.php : accessed January 3, 2026), "Gerkje Dijkstra (1910-1981)".
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