The temperature on September 11, 1870 was about 17.4 °C. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 61%. 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 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
Day of death February 12, 1953
The temperature on February 12, 1953 was between -1.6 °C and 1.3 °C and averaged -0.3 °C. There was 1.1 mm of rain during 8.6 hours. The almost completely overcast was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the north-northeast. Source: KNMI
January 14 » Josip Broz Tito is inaugurated as the first President of Yugoslavia.
January 19 » Almost 72 percent of all television sets in the United States are tuned into I Love Lucy to watch Lucy give birth.
March 1 » Soviet Premier Joseph Stalin suffers a stroke and collapses; he dies four days later.
March 3 » A De Havilland Comet (Canadian Pacific Air Lines) crashes in Karachi, Pakistan, killing 11.
May 29 » Edmund Hillary and Sherpa Tenzing Norgay become the first people to reach the summit of Mount Everest, on Tenzing Norgay's (adopted) 39th birthday.
September 12 » U.S. Senator and future President John Fitzgerald Kennedy marries Jacqueline Lee Bouvier at St. Mary's Church in Newport, Rhode Island.
When copying data from this family tree, please include a reference to the origin: Paul Slits, "Family tree Slits", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-slits/I7204.php : accessed March 16, 2026), "Klaas Friso (1870-1953)".
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