The temperature on January 31, 1881 was about 4.2 °C. There was 0.3 mm of rain. The air pressure was 6 kgf/m2 and came mainly from the southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 94%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 25 » Thomas Edison and Alexander Graham Bell form the Oriental Telephone Company.
March 13 » Alexander II of Russia is assassinated.
April 16 » In Dodge City, Kansas, Bat Masterson fights his last gun battle.
May 21 » The American Red Cross is established by Clara Barton in Washington, D.C.
July 23 » The Boundary Treaty of 1881 between Chile and Argentina is signed in Buenos Aires.
November 7 » Mapuche rebels attack the Chilean settlement of Nueva Imperial, as defenders fled to the hills and the settlement was effectively destroyed.
Day of death June 25, 1961
The temperature on June 25, 1961 was between 13.6 °C and 24.9 °C and averaged 19.2 °C. There was 14.7 hours of sunshine (88%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 26 » John F. Kennedy appoints Janet G. Travell to be the first woman Physician to the President.
June 1 » The Canadian Bank of Commerce and Imperial Bank of Canada merge to form the Canadian Imperial Bank of Commerce, the largest bank merger in Canadian history.
September 1 » The first conference of the Non-Aligned Countries is held in Belgrade, Yugoslavia.
September 10 » In the Italian Grand Prix, a crash causes the death of German Formula One driver Wolfgang von Trips and 13 spectators who are hit by his Ferrari, the deadliest accident in F1 history.
October 1 » East and West Cameroon merge to form the Federal Republic of Cameroon.
November 18 » United States President John F. Kennedy sends 18,000 military advisors to South Vietnam.
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/I184142.php : accessed February 15, 2026), "Jan Boonstra (1881-1961)".
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