The temperature on February 25, 1912 was between -0.9 °C and 8.1 °C and averaged 4.1 °C. There was 0.7 hours of sunshine (7%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 23 » The International Opium Convention is signed at The Hague.
April 10 » RMS Titanic sets sail from Southampton, England on her maiden and only voyage.
April 15 » The British passenger liner RMSTitanic sinks in the North Atlantic at 2:20a.m., two hours and forty minutes after hitting an iceberg. Only 710 of 2,227 passengers and crew on board survive.
October 3 » U.S. forces defeat Nicaraguan rebels at the Battle of Coyotepe Hill.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
November 7 » The Deutsche Opernhaus (now Deutsche Oper Berlin) opens in the Berlin neighborhood of Charlottenburg, with a production of Beethoven's Fidelio.
Day of marriage September 28, 1937
The temperature on September 28, 1937 was between 9.5 °C and 18.4 °C and averaged 14.4 °C. There was 4.6 mm of rain during 1.6 hours. There was 0.5 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I34794.php : accessed February 17, 2026), "Marinus Gerardus van Haarlem (1912-)".
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