The temperature on April 9, 1881 was about 11.4 °C. The air pressure was 4 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 47%. 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.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 20 » Pierre and Marie Curie refine radium chloride.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
Day of death May 21, 1947
The temperature on May 21, 1947 was between 8.7 °C and 17.2 °C and averaged 13.2 °C. There was 13.3 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 25 » The formal abolition of Prussia is proclaimed by the Allied Control Council, the Prussian government having already been abolished by the Preußenschlag of 1932.
June 25 » The Diary of a Young Girl (better known as The Diary of Anne Frank) is published.
July 6 » The AK-47 goes into production in the Soviet Union.
November 17 » The Screen Actors Guild implements an anti-Communist loyalty oath.
December 6 » The Everglades National Park in Florida is dedicated.
December 23 » The transistor is first demonstrated at Bell Laboratories.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I15026.php : accessed January 31, 2026), "Louisa Christina Catharina Dreyer (1881-1947)".
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