The temperature on December 30, 1911 was between 3.1 °C and 8.5 °C and averaged 6.6 °C. There was 0.1 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 23 » The New York Public Library is dedicated.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of death March 12, 1960
The temperature on March 12, 1960 was between 3.6 °C and 15.0 °C and averaged 8.0 °C. There was 4.9 mm of rain during 1.2 hours. There was 5.8 hours of sunshine (50%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 18 » Capital Airlines Flight 20 crashes into a farm in Charles City County, Virginia, killing all 50 aboard, the third fatal Capital Airlines crash in as many years.
March 4 » The French freighter La Coubre explodes in Havana, Cuba, killing 100.
March 17 » U.S. President Dwight D. Eisenhower signs the National Security Council directive on the anti-Cuban covert action program that will ultimately lead to the Bay of Pigs Invasion.
April 27 » Togo gains independence from French-administered UN trusteeship.
July 1 » Independence of Somalia.
September 10 » At the Summer Olympics in Rome, Abebe Bikila becomes the first sub-Saharan African to win a gold medal, winning the marathon in bare feet.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I265481.php : accessed February 23, 2026), "Harmannus Koning (1911-1960)".
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