The temperature on May 5, 1914 was between 9.4 °C and 15.1 °C and averaged 11.8 °C. There was 1.9 mm of rain. There was 4.9 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
April 24 » The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
August 4 » In response to the German invasion of Belgium, Belgium and the British Empire declare war on Germany. The United States declares its neutrality.
August 5 » In Cleveland, Ohio, the first electric traffic light is installed.
August 25 » World War I: Japan declares war on Austria-Hungary.
August 25 » World War I: The library of the Catholic University of Leuven is deliberately destroyed by the German Army. Hundreds of thousands of irreplaceable volumes and Gothic and Renaissance manuscripts are lost.
September 3 » World War I: Start of the Battle of Grand Couronné, a German assault against French positions on high ground near the city of Nancy.
Day of marriage August 28, 1936
The temperature on August 28, 1936 was between 9.8 °C and 23.9 °C and averaged 17.0 °C. There was 12.3 hours of sunshine (88%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
June 26 » Initial flight of the Focke-Wulf Fw 61, the first practical helicopter.
August 4 » Prime Minister of Greece Ioannis Metaxas suspends parliament and the Constitution and establishes the 4th of August Regime.
September 6 » Spanish Civil War: The Interprovincial Council of Asturias and León is established.
October 26 » The first electric generator at Hoover Dam goes into full operation.
October 27 » Mrs Wallis Simpson obtains her divorce, which would eventually allow her to marry King Edward VIII of the United Kingdom, thus forcing his abdication from the throne.
November 12 » In California, the San Francisco–Oakland Bay Bridge opens to traffic.
Day of death February 14, 1978
The temperature on February 14, 1978 was between -2.8 °C and 1.3 °C and averaged -0.1 °C. There was 1.8 mm of rain during 1.3 hours. The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
April 27 » The Saur Revolution begins in Afghanistan, ending the following morning with the murder of Afghan President Mohammed Daoud Khan and the establishment of the Democratic Republic of Afghanistan.
April 28 » President of Afghanistan, Mohammed Daoud Khan, is overthrown and assassinated in a coup led by pro-communist rebels.
May 3 » The first unsolicited bulk commercial email (which would later become known as "spam") is sent by a Digital Equipment Corporation marketing representative to every ARPANET address on the west coast of the United States.
June 1 » The first international applications under the Patent Cooperation Treaty are filed.
August 10 » Three members of the Ulrich family are killed in an accident. This leads to the Ford Pinto litigation.
November 17 » The Star Wars Holiday Special airs on CBS, receiving negative reception from critics, fans, and even Star Wars creator George Lucas.
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/P196.php : accessed December 30, 2025), "Dwight William Olson Ridgley (1914-1978)".
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