The temperature on May 13, 1880 was about 15.3 °C. The air pressure was 2 kgf/m2 and came mainly from the northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 61%. 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.
February 13 » Thomas Edison observes Thermionic emission.
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.
September 1 » The army of Mohammad Ayub Khan is routed by the British at the Battle of Kandahar, ending the Second Anglo-Afghan War.
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of marriage April 22, 1904
The temperature on April 22, 1904 was between 7.1 °C and 12.6 °C and averaged 9.3 °C. There was 4.0 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
February 8 » Aceh War: Dutch Colonial Army's Marechaussee regiment led by General G.C.E. van Daalen launch military campaign to capture Gayo Highland, Alas Highland, and Batak Highland in Dutch East Indies' Northern Sumatra region, which ends with genocide to Acehnese and Bataks people.
February 9 » Russo-Japanese War: Battle of Port Arthur concludes.
May 4 » The United States begins construction of the Panama Canal.
June 15 » A fire aboard the steamboat SSGeneral Slocum in New York City's East River kills 1,000.
June 28 » The SSNorge runs aground on Hasselwood Rock in the North Atlantic 430 kilometres (270mi) northwest of Ireland. More than 635 people die during the sinking.
July 31 » Russo-Japanese War: Battle of Hsimucheng: Units of the Imperial Japanese Army defeat units of the Imperial Russian Army in a strategic confrontation.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I19963.php : accessed February 16, 2026), "Harm Slomp (1880-????)".
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