The temperature on February 20, 1880 was about 8.1 °C. There was 1 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 92%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
May 13 » In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
June 7 » War of the Pacific: The Battle of Arica, the assault and capture of Morro de Arica (Arica Cape), ends the Campaña del Desierto (Desert Campaign).
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
June 29 » France annexes Tahiti, renaming the independent Kingdom of Tahiti as "Etablissements de français de l'Océanie".
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of marriage July 31, 1901
The temperature on July 31, 1901 was between 12.3 °C and 23.5 °C and averaged 19.4 °C. There was 8.8 hours of sunshine (56%). Source: KNMI
September 17 » Second Boer War: Boers capture a squadron of the 17th Lancers at the Battle of Elands River.
October 12 » President Theodore Roosevelt officially renames the "Executive Mansion" to the White House.
November 1 » Sigma Phi Epsilon, the largest national male collegiate fraternity, is established at Richmond College, in Richmond, Virginia.
November 18 » Britain and the United States sign the Hay–Pauncefote Treaty, which nullifies the Clayton–Bulwer Treaty and withdraws British objections to an American-controlled canal in Panama.
November 27 » The U.S. Army War College is established.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of death December 16, 1960
The temperature on December 16, 1960 was between 0.5 °C and 2.1 °C and averaged 1.3 °C. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 1 » The TIROS-1 satellite transmits the first television picture from space.
April 21 » Brasília, Brazil's capital, is officially inaugurated. At 09:30, the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro.
April 26 » Forced out by the April Revolution, President of South Korea Syngman Rhee resigns after 12 years of dictatorial rule.
May 7 » Cold War: U-2 Crisis of 1960: Soviet leader Nikita Khrushchev announces that his nation is holding American U-2 pilot Gary Powers.
August 6 » Cuban Revolution: Cuba nationalizes American and foreign-owned property in the nation.
October 12 » Japan Socialist Party leader Inejiro Asanuma is stabbed to death during a live Television broadcast.
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/I18948.php : accessed February 15, 2026), "Alida Gertrude van Heulen (1880-1960)".
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