The temperature on June 19, 1910 was between 7.9 °C and 20.7 °C and averaged 14.8 °C. There was 11.4 hours of sunshine (68%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
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.
June 2 » Charles Rolls, a co-founder of Rolls-Royce Limited, becomes the first man to make a non-stop double crossing of the English Channel by plane.
October 6 » Eleftherios Venizelos is elected prime minister of Greece for the first of seven times.
October 22 » Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
December 3 » Modern neon lighting is first demonstrated by Georges Claude at the Paris Motor Show.
Day of marriage April 13, 1944
The temperature on April 13, 1944 was between 5.1 °C and 21.5 °C and averaged 13.5 °C. There was 2.2 mm of rain during 0.9 hours. There was 9.3 hours of sunshine (68%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 20 » World War II: The United States takes Eniwetok Island.
August 12 » Alençon is liberated by General Philippe Leclerc de Hauteclocque, the first city in France to be liberated from the Nazis by French forces.
August 29 » World War II: Slovak National Uprising takes place as 60,000 Slovak troops turn against the Nazis.
October 15 » World War II: Germany replaces the Hungarian government after it announces an armistice with the Soviet Union.
November 12 » World War II: The Royal Air Force launches 29 Avro Lancaster bombers, which sink the German battleship Tirpitz, with 12,000lb Tallboy bombs off Tromsø, Norway.
December 30 » King George II of Greece declares a regency, leaving the throne vacant.
Day of death December 29, 1983
The temperature on December 29, 1983 was between 4.6 °C and 9.3 °C and averaged 7.7 °C. There was -0.1 mm of rain. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 19 » The Apple Lisa, the first commercial personal computer from Apple Inc. to have a graphical user interface and a computer mouse, is announced.
February 28 » The final episode of M*A*S*H airs, with almost 106 million viewers. It still holds the record for the highest viewership of a season finale.
July 15 » An attack at Orly Airport in Paris is launched by Armenian militant organisation ASALA, leaving eight people dead and 55 injured.
July 21 » The world's lowest temperature in an inhabited location is recorded at Vostok Station, Antarctica at −89.2°C (−128.6°F).
September 23 » Saint Kitts and Nevis joins the United Nations.
October 30 » The first democratic elections in Argentina, after seven years of military rule, are held.
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/I120834.php : accessed October 18, 2026), "Catrynus Koopmans (1910-1983)".
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