The temperature on January 13, 1912 was between 1.5 °C and 4.5 °C and averaged 3.1 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
October 18 » First Balkan War: King Peter I of Serbia issues a declaration "To the Serbian People", as his country joins the war.
October 19 » Italo-Turkish War: Italy takes possession of what is now Libya from the Ottoman Empire.
November 27 » Spain declares a protectorate over the north shore of Morocco.
When copying data from this family tree, please include a reference to the origin: Jaap Deelstra, "Family tree Deelstra, Balk, Van den Bos en Kamphof", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-deelstra/I565.php : accessed February 24, 2026), "Jan Hummel (1878-????)".
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