The temperature on April 14, 1912 was between 3.3 °C and 9.8 °C and averaged 7.1 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
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.
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
October 3 » U.S. forces defeat Nicaraguan rebels at the Battle of Coyotepe Hill.
December 28 » The first municipally owned streetcars take to the streets in San Francisco.
Day of marriage November 18, 1937
The temperature on November 18, 1937 was between -4.8 °C and 1.6 °C and averaged -1.2 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
April 1 » The Royal New Zealand Air Force is formed as an independent service.
May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
August 24 » Spanish Civil War: Sovereign Council of Asturias and León is proclaimed in Gijón.
September 21 » J. R. R. Tolkien's The Hobbit is published.
December 13 » Second Sino-Japanese War: Battle of Nanking: The city of Nanjing, defended by the National Revolutionary Army under the command of General Tang Shengzhi, falls to the Japanese. This is followed by the Nanking Massacre, in which Japanese troops rape and slaughter hundreds of thousands of civilians.
December 29 » The Irish Free State is replaced by a new state called Ireland with the adoption of a new constitution.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I215158.php : accessed March 16, 2026), "Johan Ralph Waldo Stegenga (1912-)".
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