The temperature on July 20, 1917 was between 10.0 °C and 20.3 °C and averaged 15.8 °C. There was 13.6 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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 9 » World War I: The Battle of Rafa is fought near the Egyptian border with Palestine.
January 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
May 27 » Pope Benedict XV promulgates the 1917 Code of Canon Law, the first comprehensive codification of Catholic canon law in the legal history of the Catholic Church.
June 7 » World War I: Battle of Messines: Allied soldiers detonate a series of mines underneath German trenches at Messines Ridge, killing 10,000 German troops.
December 6 » World War I: USSJacob Jones is the first American destroyer to be sunk by enemy action when it is torpedoed by German submarine SMU-53.
December 11 » World War I: British General Edmund Allenby enters Jerusalem on foot and declares martial law.
Day of death June 20, 1973
The temperature on June 20, 1973 was between 15.1 °C and 26.1 °C and averaged 18.7 °C. There was -0.1 mm of rain. There was 7.5 hours of sunshine (45%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
March 17 » The Pulitzer Prize-winning photograph Burst of Joy is taken, depicting a former prisoner of war being reunited with his family, which came to symbolize the end of United States involvement in the Vietnam War.
July 29 » Greeks vote to abolish the monarchy, beginning the first period of the Metapolitefsi.
September 11 » JAT Airways Flight 769 crashes into the Maganik mountain range while on approach to Titograd Airport, killing 35 passengers and six crew.
October 16 » Henry Kissinger and Lê Đức Thọ are awarded the Nobel Peace Prize.
November 4 » The Netherlands experiences the first Car-Free Sunday caused by the 1973 oil crisis. Highways are used only by cyclists and roller skaters.
November 16 » U.S. President Richard Nixon signs the Trans-Alaska Pipeline Authorization Act into law, authorizing the construction of the Alaska Pipeline.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I21226.php : accessed February 4, 2026), "Dirk Jacobus de Beer (1917-1973)".
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