The temperature on July 11, 1916 was between 9.7 °C and 16.9 °C and averaged 13.8 °C. There was 2.0 hours of sunshine (12%). The average windspeed was 3 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 12 » Both Oswald Boelcke and Max Immelmann, for achieving eight aerial victories each over Allied aircraft, receive the German Empire's highest military award, the Pour le Mérite as the first German aviators to earn it.
July 15 » In Seattle, Washington, William Boeing and George Conrad Westervelt incorporate Pacific Aero Products (later renamed Boeing).
July 22 » Preparedness Day Bombing: In San Francisco, a bomb explodes on Market Street during a parade, killing ten and injuring 40.
August 28 » World War I: Italy declares war on Germany.
September 27 » Iyasu V is proclaimed deposed as ruler of Ethiopia in a palace coup in favor of his aunt Zewditu.
December 23 » World War I: Battle of Magdhaba: Allied forces defeat Turkish forces in the Sinai Peninsula.
Day of marriage June 4, 1942
The temperature on June 4, 1942 was between 12.0 °C and 26.5 °C and averaged 19.7 °C. There was 0.1 mm of rain. There was 14.4 hours of sunshine (87%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 24 » The Battle of Los Angeles: A false alarm led to an anti-aircraft barrage that lasted into the early hours of February 25.
March 8 » World War II: Imperial Japanese Army forces gave ultimatum to Dutch East Indies Governor General Jonkheer Tjarda van Starkenborgh Stachouwer and KNIL Commander in Chief Lieutenant General Hein Ter Poorten, to unconditionally surrender.
March 31 » World War II: Japanese forces invade Christmas Island, then a British possession.
July 18 » World War II: During the Beisfjord massacre in Norway, 15 Norwegian paramilitary guards help members of the SS to kill 288 political prisoners from Yugoslavia.
August 23 » World War II: Beginning of the Battle of Stalingrad.
November 10 » World War II: Germany invades Vichy France following French Admiral François Darlan's agreement to an armistice with the Allies in North Africa.
Day of death May 25, 1954
The temperature on May 25, 1954 was between 7.2 °C and 23.5 °C and averaged 16.6 °C. There was 14.1 hours of sunshine (87%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
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/I110934.php : accessed December 29, 2025), "Rinze Ytsma (1916-1954)".
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