The temperature on July 15, 1912 was between 14.9 °C and 27.4 °C and averaged 21.6 °C. There was 12.1 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 23 » The International Opium Convention is signed at The Hague.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
October 19 » Italo-Turkish War: Italy takes possession of what is now Libya from the Ottoman Empire.
November 2 » Bulgaria defeats the Ottoman Empire in the Battle of Lule Burgas, the bloodiest battle of the First Balkan War, which opens her way to Constantinople.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
When copying data from this family tree, please include a reference to the origin: Gé Lobé, "Family tree Lobé en verwanten.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-lobe/I39869.php : accessed March 1, 2026), "Johannes Gabriel Christianus Vis (1912-)".
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