January 13 » First Italo-Ethiopian War: the war's opening battle, the Battle of Coatit, occurs; it is an Italian victory.
February 1 » Fountains Valley, Pretoria, the oldest nature reserve in Africa, is proclaimed by President Paul Kruger.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of marriage May 3, 1915
The temperature on May 3, 1915 was between -0.3 °C and 13.6 °C and averaged 7.6 °C. There was 12.9 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
March 18 » World War I: During the Battle of Gallipoli, three battleships are sunk during a failed British and French naval attack on the Dardanelles.
March 27 » Typhoid Mary, the first healthy carrier of disease ever identified in the United States is put in quarantine for the second time, where she would remain for the rest of her life.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
August 17 » Jewish American Leo Frank is lynched in Marietta, Georgia after a 13-year-old girl is murdered.
August 27 » Attempted assassination of Bishop Patrick Heffron, bishop of the Diocese of Winona by Rev. Louis M. Lesches.
Day of death December 9, 1963
The temperature on December 9, 1963 was between -4.7 °C and -0.9 °C and averaged -3.1 °C. There was 1.3 hours of sunshine (16%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east. Source: KNMI
March 8 » The Ba'ath Party comes to power in Syria in a coup d'état by a clique of quasi-leftist Syrian Army officers calling themselves the National Council of the Revolutionary Command.
June 5 » Movement of 15 Khordad: Protests against the arrest of Ayatollah Ruhollah Khomeini by the Shah of Iran, Mohammad Reza Pahlavi. In several cities, masses of angry demonstrators are confronted by tanks and paratroopers.
June 26 » Cold War: U.S. President John F. Kennedy gave his "Ich bin ein Berliner" speech, underlining the support of the United States for democratic West Germany shortly after Soviet-supported East Germany erected the Berlin Wall.
August 30 » The Moscow–Washington hotline between the leaders of the U.S. and the Soviet Union goes into operation.
September 15 » Baptist Church bombing: Four children killed in the bombing of an African-American church in Birmingham, Alabama, United States.
October 10 » The Partial Nuclear Test Ban Treaty comes into effect.
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/I212499.php : accessed October 17, 2026), "Grietje Alida Boer (1895-1963)".
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