The temperature on January 28, 1915 was between -6.6 °C and -1.3 °C and averaged -2.9 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. 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.
January 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
April 24 » The arrest of 250 Armenian intellectuals and community leaders in Istanbul marks the beginning of the Armenian Genocide.
May 9 » World War I: Second Battle of Artois between German and French forces.
June 5 » Denmark amends its constitution to allow women's suffrage.
September 5 » The pacifist Zimmerwald Conference begins.
September 25 » World War I: The Second Battle of Champagne begins.
Day of marriage September 20, 1948
The temperature on September 20, 1948 was between 8.1 °C and 16.7 °C and averaged 12.7 °C. There was 1.4 mm of rain during 1.5 hours. There was 2.6 hours of sunshine (21%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 7 » Kentucky Air National Guard pilot Thomas Mantell crashes while in pursuit of a supposed UFO.
April 21 » United Nations Security Council Resolution 47 relating to Kashmir conflict is adopted.
July 16 » The storming of the cockpit of the Miss Macao passenger seaplane, operated by a subsidiary of the Cathay Pacific Airways, marks the first aircraft hijacking of a commercial plane.
August 10 » Candid Camera makes its television debut after being on radio for a year as Candid Microphone.
September 18 » Margaret Chase Smith of Maine becomes the first woman elected to the United States Senate without completing another senator's term.
September 18 » Operation Polo is terminated after the Indian Army accepts the surrender of the army of Hyderabad.
Day of death December 3, 1964
The temperature on December 3, 1964 was between -0.2 °C and 5.0 °C and averaged 2.6 °C. There was 13.3 mm of rain during 5.4 hours. There was 1.7 hours of sunshine (21%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 11 » Surgeon General of the United States Dr. Luther Terry, M.D., publishes the landmark report Smoking and Health: Report of the Advisory Committee to the Surgeon General of the United States saying that smoking may be hazardous to health, sparking national and worldwide anti-smoking efforts.
August 4 » Second Gulf of Tonkin Incident: U.S. destroyers USSMaddox and USSTurner Joy mistakenly report coming under attack in the Gulf of Tonkin.
August 19 » Syncom 3, the first geostationary communication satellite, was launched.
September 13 » South Vietnamese Generals Lâm Văn Phát and Dương Văn Đức fail in a coup attempt against General Nguyễn Khánh.
September 27 » The British TSR-2 aircraft XR219 makes its maiden flight.
December 1 » Vietnam War: U.S. President Lyndon B. Johnson and his top-ranking advisers meet to discuss plans to bomb North Vietnam.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I4170.php : accessed January 25, 2026), "Volkert Olgers (1915-1964)".
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