The temperature on May 3, 1912 was between 5.1 °C and 14.5 °C and averaged 10.7 °C. There was 0.6 mm of rain. There was 4.3 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
May 4 » Italy occupies the Greek island of Rhodes.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
November 7 » The Deutsche Opernhaus (now Deutsche Oper Berlin) opens in the Berlin neighborhood of Charlottenburg, with a production of Beethoven's Fidelio.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
When copying data from this family tree, please include a reference to the origin: John van Os, "Family tree Van Os", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-os/I8565.php : accessed January 30, 2026), "Theodora van Oosteren (1883-????)".
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