The temperature on December 13, 1917 was between 1.3 °C and 6.7 °C and averaged 4.2 °C. There was 0.2 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
January 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
March 2 » The enactment of the Jones–Shafroth Act grants Puerto Ricans United States citizenship.
March 31 » According to the terms of the Treaty of the Danish West Indies, the islands become American possessions.
May 26 » Several powerful tornadoes rip through Illinois, including the city of Mattoon.
July 6 » World War I: Arabian troops led by T. E. Lawrence ("Lawrence of Arabia") and Auda ibu Tayi capture Aqaba from the Ottoman Empire during the Arab Revolt.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I570302.php : accessed January 27, 2026), "Luitzen Harmens de Vries (1893-????)".
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