The temperature on March 21, 1910 was between -2.9 °C and 10.4 °C and averaged 3.8 °C. There was 10.2 hours of sunshine (84%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
May 31 » The South Africa Act comes into force, establishing the Union of South Africa.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
July 16 » John Robertson Duigan makes the first flight of the Duigan pusher biplane, the first aircraft built in Australia.
September 12 » Premiere performance of Gustav Mahler's Symphony No. 8 in Munich (with a chorus of 852 singers and an orchestra of 171 players. Mahler's rehearsal assistant conductor was Bruno Walter).
December 3 » Modern neon lighting is first demonstrated by Georges Claude at the Paris Motor Show.
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I59167.php : accessed January 14, 2026), "Grietje Jacoba Sennema (1910-)".
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