The temperature on May 7, 1917 was between -0.7 °C and 16.4 °C and averaged 9.2 °C. There was 13.4 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) 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 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
February 5 » The current constitution of Mexico is adopted, establishing a federal republic with powers separated into independent executive, legislative, and judicial branches.
March 8 » International Women's Day protests in St. Petersburg mark the beginning of the February Revolution (February 23rd in the Julian calendar).
April 9 » World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
November 26 » The National Hockey League is formed, with the Montreal Canadiens, Montreal Wanderers, Ottawa Senators, Quebec Bulldogs, and Toronto Arenas as its first teams.
December 2 » World War I: Russia and the Central Powers sign an armistice at Brest-Litovsk, and peace talks leading to the Treaty of Brest-Litovsk begin.
Day of death July 16, 1955
The temperature on July 16, 1955 was between 17.0 °C and 24.2 °C and averaged 20.1 °C. There was 8.5 hours of sunshine (52%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 7 » Contralto Marian Anderson becomes the first person of color to perform at the Metropolitan Opera in Giuseppe Verdi's Un ballo in maschera.
April 24 » The Bandung Conference ends: Twenty-nine non-aligned nations of Asia and Africa finish a meeting that condemns colonialism, racism, and the Cold War.
July 27 » El Al Flight 402 is shot down by two fighter jets after straying into Bulgarian air space. All 58 people onboard are killed.
September 16 » The military coup to unseat President Juan Perón of Argentina is launched at midnight.
September 25 » The Royal Jordanian Air Force is founded.
October 26 » Ngô Đình Diệm declares himself Premier of South Vietnam.
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/I16796.php : accessed January 20, 2026), "Roelof Petrus Gerhardus Dreyer ???? (1898-1955)".
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