The temperature on September 15, 1912 was between 6.4 °C and 13.8 °C and averaged 11.0 °C. There was 2.1 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
April 20 » Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
May 5 » Pravda, the "voice" of the Communist Party of the Soviet Union, begins publication in Saint Petersburg.
July 8 » Henrique Mitchell de Paiva Couceiro leads an unsuccessful royalist attack against the First Portuguese Republic in Chaves.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
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.)
Day of marriage May 11, 1935
The temperature on May 11, 1935 was between 7.5 °C and 16.1 °C and averaged 11.0 °C. There was 6.3 hours of sunshine (41%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
August 14 » Franklin D. Roosevelt signs the Social Security Act, creating a government pension system for the retired.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
November 3 » George II of Greece regains his throne through a popular, though possibly fixed, plebiscite.
November 9 » The Congress of Industrial Organizations is founded in Atlantic City, New Jersey, by eight trade unions belonging to the American Federation of Labor.
December 5 » Mary McLeod Bethune founds the National Council of Negro Women in New York City.
December 18 » The Lanka Sama Samaja Party is founded in Ceylon.
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/I110749.php : accessed October 16, 2026), "Sietske Woudstra (1912-)".
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