The temperature on June 18, 1914 was between 8.0 °C and 17.3 °C and averaged 13.9 °C. There was 0.6 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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 » The Phi Beta Sigma fraternity is founded by African-American students at Howard University in Washington D.C., United States.
May 17 » The Protocol of Corfu is signed, recognising full autonomy to Northern Epirus under nominal Albanian sovereignty.
October 18 » The Schoenstatt Movement is founded in Germany.
November 1 » World War I: The Australian Imperial Force (AIF) departed by ship in a single convoy from Albany, Western Australia bound for Egypt.
November 9 » SMSEmden is sunk by HMASSydney in the Battle of Cocos.
December 15 » World War I: The Serbian Army recaptures Belgrade from the invading Austro-Hungarian Army.
Day of marriage May 18, 1940
The temperature on May 18, 1940 was between 8.5 °C and 19.2 °C and averaged 13.4 °C. There was 9.9 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
May 10 » World War II: German fighters accidentally bomb the German city of Freiburg.
May 24 » Acting on the orders of Soviet leader Joseph Stalin, NKVD agent Iosif Grigulevich orchestrates an unsuccessful assassination attempt on exiled Russian revolutionary Leon Trotsky in Coyoacán, Mexico.
July 19 » Field Marshal Ceremony: First occasion in World War II that Adolf Hitler appoints field marshals due to military achievements.
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.
October 31 » World War II: The Battle of Britain ends: The United Kingdom prevents a possible German invasion.
November 11 » World War II: The German auxiliary cruiser Atlantis captures top secret British mail from the Automedon, and sends it to Japan.
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/I139966.php : accessed October 23, 2026), "Wybren Kooistra (1914-)".
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