The temperature on April 17, 1912 was between 1.7 °C and 15.3 °C and averaged 9.6 °C. There was 11.8 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 23 » The International Opium Convention is signed at The Hague.
March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
May 4 » Italy occupies the Greek island of Rhodes.
October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I167536.php : accessed October 22, 2026), "Gerben Veenstra (1912-)".
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