The temperature on June 5, 1870 was about 13.2 °C. The air pressure was 6 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 68%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
April 20 » Pierre and Marie Curie refine radium chloride.
May 8 » In Martinique, Mount Pelée erupts, destroying the town of Saint-Pierre and killing over 30,000 people. Only a handful of residents survive the blast.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
June 28 » The U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
Day of death February 11, 1935
The temperature on February 11, 1935 was between -2.5 °C and 7.1 °C and averaged 2.1 °C. There was 3.6 hours of sunshine (37%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
May 29 » First flight of the Messerschmitt Bf 109 fighter aeroplane.
May 31 » A 7.7 Mw earthquake destroys Quetta in modern-day Pakistan killing 40,000.
September 2 » The Labor Day Hurricane, the most intense hurricane to strike the United States, makes landfall at Long Key, Florida, killing at least 400.
October 10 » In Greece, a coup d'état ends the Second Hellenic Republic.
November 22 » The China Clipper inaugurates the first commercial transpacific air service, connecting Alameda, California with Manila.
December 9 » Student protests in Beiping (now Beijing)'s Tiananmen Square, dispersed by government.
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/I58597.php : accessed October 20, 2026), "Klaas Sytsma (1870-1935)".
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