The temperature on December 26, 1915 was between 3.4 °C and 9.4 °C and averaged 6.7 °C. There was 0.3 mm of rain. There was 1.7 hours of sunshine (22%). 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.
January 25 » Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.
March 20 » Albert Einstein publishes his general theory of relativity.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death June 17, 1981
The temperature on June 17, 1981 was between 9.1 °C and 15.2 °C and averaged 11.2 °C. There was 4.8 mm of rain during 3.4 hours. There was 2.8 hours of sunshine (17%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
April 3 » The Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.
April 12 » The first launch of a Space Shuttle (Columbia) takes place: The STS-1 mission.
July 17 » A structural failure leads to the collapse of a walkway at the Hyatt Regency in Kansas City, Missouri, killing 114 people and injuring more than 200.
September 3 » The Convention on the Elimination of All Forms of Discrimination Against Women, an international bill of rights for women, is instituted by the United Nations.
September 15 » The Senate Judiciary Committee unanimously approves Sandra Day O'Connor to become the first female justice of the Supreme Court of the United States.
November 30 » Cold War: In Geneva, representatives from the United States and the Soviet Union begin to negotiate intermediate-range nuclear weapon reductions in Europe. (The meetings end inconclusively on December 17.)
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/I7704.php : accessed March 11, 2026), "Adrianus Bak (1915-1981)".
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