The temperature on January 6, 1910 was between 4.3 °C and 5.2 °C and averaged 4.5 °C. There was 0.1 mm of rain. The average windspeed was 1 Bft (weak wind) and was prevailing from the north. 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 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
June 19 » The first Father's Day is celebrated in Spokane, Washington.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
October 6 » Eleftherios Venizelos is elected prime minister of Greece for the first of seven times.
November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.
Day of marriage January 21, 1937
The temperature on January 21, 1937 was between 0.4 °C and 8.1 °C and averaged 3.6 °C. There was 0.1 mm of rain. There was 1.7 hours of sunshine (20%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
March 18 » Spanish Civil War: Spanish Republican forces defeat the Italians at the Battle of Guadalajara.
July 24 » Alabama drops rape charges against the "Scottsboro Boys".
July 26 » Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.
August 28 » Toyota Motors becomes an independent company.
September 21 » J. R. R. Tolkien's The Hobbit is published.
November 8 » The Nazi exhibition Der ewige Jude ("The Eternal Jew") opens in Munich.
Day of death January 31, 1960
The temperature on January 31, 1960 was between -0.5 and 0.5 °C. There was 4.5 mm of rain during 13.4 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
February 13 » With the success of a nuclear test codenamed "Gerboise Bleue", France becomes the fourth country to possess nuclear weapons.
June 23 » The United States Food and Drug Administration declares Enovid to be the first officially approved combined oral contraceptive pill in the world.
June 26 » Madagascar gains its independence from France.
August 9 » South Kasai secedes from the Congo.
September 10 » At the Summer Olympics in Rome, Abebe Bikila becomes the first sub-Saharan African to win a gold medal, winning the marathon in bare feet.
September 14 » The Organization of Petroleum Exporting Countries (OPEC) is founded.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I18486.php : accessed January 23, 2026), "Alida Margaretha van Urk (1910-1960)".
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