The temperature on January 9, 1915 was between 2.7 °C and 5.5 °C and averaged 3.9 °C. There was 3.7 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 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 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
January 28 » An act of the U.S. Congress creates the United States Coast Guard as a branch of the United States Armed Forces.
May 24 » World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
December 20 » World War I: The last Australian troops are evacuated from Gallipoli.
Day of marriage May 9, 1934
The temperature on May 9, 1934 was between 6.6 °C and 15.9 °C and averaged 10.2 °C. There was 5.5 mm of rain during 7.8 hours. There was 3.7 hours of sunshine (24%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 6 » Far-right leagues rally in front of the Palais Bourbon in an attempted coup against the French Third Republic, creating a political crisis in France.
February 9 » The Balkan Entente is formed.
May 23 » Infamous American bank robbers Bonnie and Clyde are ambushed by police and killed in Bienville Parish, Louisiana.
July 11 » Engelbert Zaschka of Germany flies his large human-powered aircraft, the Zaschka Human-Power Aircraft, about 20 meters at Berlin Tempelhof Airport without assisted take-off.
September 18 » The Soviet Union is admitted to the League of Nations.
November 23 » An Anglo-Ethiopian boundary commission in the Ogaden discovers an Italian garrison at Walwal, well within Ethiopian territory. This leads to the Abyssinia Crisis.
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/I140111.php : accessed December 31, 2025), "Albertje Wiersma (1915-)".
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