The temperature on August 29, 1912 was between 9.7 °C and 19.7 °C and averaged 15.1 °C. There was 6.9 mm of rain. There was 3.2 hours of sunshine (23%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
June 4 » Massachusetts becomes the first state of the United States to set a minimum wage.
October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
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.)
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
Day of marriage January 25, 1936
The temperature on January 25, 1936 was between 2.3 °C and 7.7 °C and averaged 5.2 °C. There was 3.3 mm of rain during 3.2 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 8 » Kashf-e hijab decree is made and immediately enforced by Reza Shah, Iran's head of state, banning the wearing of Islamic veils in public.
June 26 » Initial flight of the Focke-Wulf Fw 61, the first practical helicopter.
August 14 » Rainey Bethea is hanged in Owensboro, Kentucky in the last known public execution in the United States.
October 9 » Boulder Dam (later Hoover Dam) begins to generate electricity and transmit it to Los Angeles.
November 8 » Spanish Civil War: Francoist troops fail in their effort to capture Madrid, but begin the 3-year Siege of Madrid afterwards.
December 5 » The Soviet Union adopts a new constitution and the Kirghiz Soviet Socialist Republic is established as a full Union Republic of the USSR.
Day of death December 9, 1971
The temperature on December 9, 1971 was between 2.1 °C and 9.2 °C and averaged 5.9 °C. There was 2.2 mm of rain during 7.5 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 25 » Charles Manson and three female "Family" members are found guilty of the 1969 Tate–LaBianca murders.
February 9 » Apollo program: Apollo 14 returns to Earth after the third manned Moon landing.
July 11 » Copper mines in Chile are nationalized.
July 30 » Apollo program: Apollo 15 Mission: David Scott and James Irwin on the Apollo Lunar Module Falcon land on the Moon with the first Lunar Rover.
September 15 » The first Greenpeace ship sets sail to protest against nuclear testing on Amchitka Island.
November 27 » The Soviet space program's Mars 2 orbiter releases a descent module. It malfunctions and crashes, but it is the first man-made object to reach the surface of Mars.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I518923.php : accessed February 14, 2026), "Christiaan Lourens Dreyer (1912-1971)".
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