The temperature on June 27, 1912 was between 10.2 °C and 20.2 °C and averaged 15.8 °C. There was 6.9 hours of sunshine (41%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
April 10 » RMS Titanic sets sail from Southampton, England on her maiden and only voyage.
April 20 » Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
June 30 » The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan.
October 3 » U.S. forces defeat Nicaraguan rebels at the Battle of Coyotepe Hill.
Day of marriage June 3, 1936
The temperature on June 3, 1936 was between 8.0 °C and 17.3 °C and averaged 11.8 °C. There was 1.3 mm of rain during 0.6 hours. There was 1.1 hours of sunshine (7%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
April 5 » Tupelo–Gainesville tornado outbreak: An F5 tornado kills 233 in Tupelo, Mississippi.
July 21 » Spanish Civil War: The Central Committee of Antifascist Militias of Catalonia is constituted, establishing an anarcho-syndicalist economy in Catalonia.
August 19 » The Great Purge of the Soviet Union begins when the first of the Moscow Trials is convened.
November 23 » Life magazine is reborn as a photo magazine and enjoys instant success.
November 30 » In London, the Crystal Palace is destroyed by fire.
December 23 » Colombia becomes a signatory to the Buenos Aires copyright treaty.
When copying data from this family tree, please include a reference to the origin: Hildo Onstenk, "Family tree Onstenk", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-onstenk/X80.php : accessed March 4, 2026), "Hendrika Maria Onstenk (1912-2004)".
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