The temperature on October 9, 1912 was between 4.3 °C and 16.1 °C and averaged 9.7 °C. There was 8.0 hours of sunshine (72%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
November 27 » Spain declares a protectorate over the north shore of Morocco.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
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The Family tree Doppenberg publication was prepared by Henk Doppenberg (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Henk Doppenberg, "Family tree Doppenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-doppenberg/I9753.php : accessed January 5, 2026), "Jannetje Heijndijk (1911-1912)".
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