The temperature on April 18, 1911 was between 3.3 °C and 18.2 °C and averaged 12.4 °C. There was 8.0 hours of sunshine (57%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
Day of death May 19, 2008
The temperature on May 19, 2008 was between 1.9 °C and 14.5 °C and averaged 9.2 °C. There was 0.5 mm of rain during 1.3 hours. There was 4.4 hours of sunshine (28%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Thursday, February 22, 2007 to Thursday, October 14, 2010 the cabinet Balkenende IV, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P17920.php : accessed January 24, 2026), "George Huntington Hartford (1911-2008)".
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