The temperature on September 2, 1880 was about 18.7 °C. The air pressure was 1 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 90%. 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 11 » Seven people are killed in the Mussel Slough Tragedy, a gun battle in California.
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.
July 27 » Second Anglo-Afghan War: Battle of Maiwand: Afghan forces led by Mohammad Ayub Khan defeat the British Army in battle near Maiwand, Afghanistan.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
Day of death May 20, 1961
The temperature on May 20, 1961 was between 7.7 °C and 12.6 °C and averaged 9.8 °C. There was 2.5 mm of rain during 2.9 hours. There was 3.6 hours of sunshine (23%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Hans Dunning, "Family tree Dunning", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dunning/R6830.php : accessed October 21, 2026), "Jan Schenkman (1880-1961)".
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