The temperature on July 25, 1915 was between 8.9 °C and 18.4 °C and averaged 13.8 °C. There was 6.8 mm of rain. There was 5.9 hours of sunshine (37%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
May 7 » The Republic of China accedes to 13 of the 21 Demands, extending the Empire of Japan's control over Manchuria and the Chinese economy.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
October 14 » World War I: Bulgaria joins the Central Powers.
Day of marriage May 31, 1940
The temperature on May 31, 1940 was between 6.7 °C and 17.7 °C and averaged 12.0 °C. There was 0.4 mm of rain during 0.3 hours. There was 3.3 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 23 » The Rhythm Club fire at a dance hall in Natchez, Mississippi, kills 198 people.
June 18 » Appeal of 18 June by Charles de Gaulle.
July 5 » World War II: Foreign relations of Vichy France are severed with the United Kingdom.
August 5 » World War II: The Soviet Union formally annexes Latvia.
August 15 » An Italian submarine torpedoes and sinks the Greek cruiserElli at Tinos harbor during peacetime, marking the most serious Italian provocation prior to the outbreak of the Greco-Italian War in October.
September 7 » Romania returns Southern Dobruja to Bulgaria under the Treaty of Craiova.
Day of death November 16, 1989
The temperature on November 16, 1989 was between 0.4 °C and 7.9 °C and averaged 3.7 °C. There was 8.1 hours of sunshine (92%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
August 19 » Polish president Wojciech Jaruzelski nominates Solidarity activist Tadeusz Mazowiecki to be the first non-communist prime minister in 42 years.
October 17 » The 6.9 Mw Loma Prieta earthquake shakes the San Francisco Bay Area and the Central Coast, killing Sixty-three.
December 6 » The École Polytechnique massacre (or Montreal Massacre): Marc Lépine, an anti-feminist gunman, murders 14 young women at the École Polytechnique in Montreal.
December 17 » Fernando Collor de Mello defeats Luiz Inácio Lula da Silva in the second round of the Brazilian presidential election, becoming the first democratically elected President in almost 30 years.
December 22 » Berlin's Brandenburg Gate re-opens after nearly 30 years, effectively ending the division of East and West Germany.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I112851.php : accessed February 2, 2026), "Gerk Zijlstra (1915-1989)".
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