June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage September 13, 1917
The temperature on September 13, 1917 was between 8.9 °C and 16.4 °C and averaged 12.9 °C. There was 4.3 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
February 5 » The current constitution of Mexico is adopted, establishing a federal republic with powers separated into independent executive, legislative, and judicial branches.
June 13 » World War I: The deadliest German air raid on London of the war is carried out by Gotha G.IV bombers and results in 162 deaths, including 46 children, and 432 injuries.
July 12 » The Bisbee Deportation occurs as vigilantes kidnap and deport nearly 1,300 striking miners and others from Bisbee, Arizona.
July 17 » King George V issues a Proclamation stating that the male line descendants of the British Royal Family will bear the surname Windsor.
October 31 » World War I: Battle of Beersheba: The "last successful cavalry charge in history".
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.
When copying data from this family tree, please include a reference to the origin: Eric Brouwer, "Family tree Brouwer - Koster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-brouwer/I63100.php : accessed February 27, 2026), "Pieternella Maria van de Weg (1897-????)".
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