The temperature on December 13, 1889 was about -0.8 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 94%. Source: KNMI
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
July 11 » Tijuana, Mexico, is founded.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
November 23 » The first jukebox goes into operation at the Palais Royale Saloon in San Francisco.
Day of marriage December 31, 1915
The temperature on December 31, 1915 was between 2.3 °C and 8.2 °C and averaged 5.6 °C. There was 3.9 mm of rain. There was 1.8 hours of sunshine (23%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. 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 25 » Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.
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 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
May 27 » HMS Princess Irene exploded and sank off Sheerness, Kent with the loss of 352 lives.
October 14 » World War I: Bulgaria joins the Central Powers.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I17340.php : accessed February 18, 2026), "Willem Zwaan (1889-????)".
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