The temperature on July 31, 1914 was between 12.4 °C and 21.3 °C and averaged 16.4 °C. There was 5.2 hours of sunshine (33%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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 13 » Copyright: In New York City the American Society of Composers, Authors and Publishers is established to protect the copyrighted musical compositions of its members.
April 24 » The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
May 29 » The Ocean liner RMSEmpress of Ireland sinks in the Gulf of Saint Lawrence with the loss of 1,012 lives.
August 20 » World War I: Brussels is captured during the German invasion of Belgium.
September 16 » World War I: The Siege of Przemyśl (present-day Poland) begins.
November 2 » World War I: The Russian Empire declares war on the Ottoman Empire and the Dardanelles are subsequently closed.
Day of marriage August 16, 1935
The temperature on August 16, 1935 was between 9.1 °C and 20.5 °C and averaged 15.4 °C. There was 1.5 hours of sunshine (10%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 28 » DuPont scientist Wallace Carothers invents nylon.
May 29 » First flight of the Messerschmitt Bf 109 fighter aeroplane.
June 18 » Police in Vancouver, British Columbia, Canada, clash with striking longshoremen, resulting in a total of 60 injuries and 24 arrests.
September 30 » The Hoover Dam, astride the border between the U.S. states of Arizona and Nevada, is dedicated.
December 9 » Student protests in Beiping (now Beijing)'s Tiananmen Square, dispersed by government.
December 18 » The Lanka Sama Samaja Party is founded in Ceylon.
Day of death March 25, 1968
The temperature on March 25, 1968 was between 6.1 °C and 14.2 °C and averaged 10.5 °C. There was 0.1 mm of rain during 0.1 hours. There was 0.3 hours of sunshine (2%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 23 » USS Pueblo (AGER-2) is attacked and seized by naval forces of North Korea.
February 1 » Canada's three military services, the Royal Canadian Navy, the Canadian Army and the Royal Canadian Air Force, are unified into the Canadian Forces.
March 2 » Baggeridge Colliery closes marking the end of over 300 years of coal mining in the Black Country.
June 11 » Lloyd J. Old identified the first cell surface antigens that could differentiate among different cell types.
October 16 » Kingston, Jamaica is rocked by the Rodney riots, inspired by the barring of Walter Rodney from the country.
October 20 » Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.
Day of burial March 29, 1968
The temperature on March 29, 1968 was between 6.8 °C and 23.9 °C and averaged 14.0 °C. There was 10.3 hours of sunshine (81%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 30 » Vietnam War: Tet Offensive launch by forces of the Viet Cong and North Vietnamese Army against South Vietnam, the United States, and their allies.
January 31 » Nauru gains independence from Australia.
April 23 » Vietnam War: Student protesters at Columbia University in New York City take over administration buildings and shut down the university.
September 24 » First episode of 60 Minutes airs on television.
October 16 » Kingston, Jamaica is rocked by the Rodney riots, inspired by the barring of Walter Rodney from the country.
December 13 » Brazilian President Artur da Costa e Silva issues AI-5 (Institutional Act No. 5), enabling government by decree and suspending habeas corpus.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Gerrit Helsdingen", database, Genealogy Online (https://www.genealogieonline.nl/gerrit-helsdingen/I77875.php : accessed August 17, 2026), "Aaltje Vos (1914-1968)".
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