The temperature on October 11, 1912 was between -1.9 °C and 14.7 °C and averaged 5.4 °C. There was 7.9 hours of sunshine (72%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
June 8 » Carl Laemmle incorporates Universal Pictures.
November 12 » The frozen bodies of Robert Scott and his men are found on the Ross Ice Shelf in Antarctica.
November 28 » Albania declares its independence from the Ottoman Empire.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage November 20, 1939
The temperature on November 20, 1939 was between 3.6 °C and 10.0 °C and averaged 6.3 °C. There was 0.4 mm of rain during 0.6 hours. There was 6.0 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
March 1 » An Imperial Japanese Army ammunition dump explodes at Hirakata, Osaka, Japan, killing 94.
March 15 » Carpatho-Ukraine declares itself an independent republic, but is annexed by Hungary the next day.
April 10 » Alcoholics Anonymous, A.A.'s "Big Book", is first published.
August 15 » The Wizard of Oz premieres at Grauman's Chinese Theater in Los Angeles, California.
September 2 » World War II: Following the start of the invasion of Poland the previous day, the Free City of Danzig (now Gdańsk, Poland) is annexed by Nazi Germany.
December 14 » Winter War: The Soviet Union is expelled from the League of Nations for invading Finland.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I3969.php : accessed January 17, 2026), "Trijntje "Tine" Nieuwkamp (1912-)".
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