The temperature on April 1, 1880 was about 9.0 °C. There was 0.2 mm of rain. The air pressure was 20 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 70%. 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.
February 13 » Thomas Edison observes Thermionic emission.
May 13 » In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
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 28 » Australian bushranger Ned Kelly is captured at Glenrowan.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
September 16 » The Cornell Daily Sun prints its first issue in Ithaca, New York. The Sun is the United States' oldest, continuously-independent college daily.
Day of death August 20, 1961
The temperature on August 20, 1961 was between 10.2 °C and 17.8 °C and averaged 14.8 °C. There was 0.1 mm of rain. There was 3.6 hours of sunshine (25%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 27 » The Soviet submarine S-80 sinks when its snorkel malfunctions, flooding the boat.
March 2 » John F. Kennedy announces the creation of the Peace Corps in a nationally televised broadcast.
March 9 » Sputnik 9 successfully launches, carrying a dog and a human dummy, and demonstrating that the Soviet Union was ready to begin human spaceflight.
May 19 » Venera program: Venera 1 becomes the first man-made object to fly by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back any data).
September 12 » The African and Malagasy Union is founded.
October 29 » Syria exits from the United Arab Republic.
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/I109872.php : accessed October 7, 2026), "Henderikus Johannes van Leeuwen (1880-1961)".
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