The temperature on July 29, 1912 was between 12.1 °C and 20.3 °C and averaged 15.9 °C. There was 6.2 hours of sunshine (40%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 12 » The Xuantong Emperor, the last Emperor of China, abdicates.
May 4 » Italy occupies the Greek island of Rhodes.
July 8 » Henrique Mitchell de Paiva Couceiro leads an unsuccessful royalist attack against the First Portuguese Republic in Chaves.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
November 7 » The Deutsche Opernhaus (now Deutsche Oper Berlin) opens in the Berlin neighborhood of Charlottenburg, with a production of Beethoven's Fidelio.
When copying data from this family tree, please include a reference to the origin: Ton Ross, "Family tree Ross - Peters - Hart - van der Willigen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ross/I2415.php : accessed February 14, 2026), "Gretha Rooselaar (1912-)".
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