The temperature on August 11, 1886 was about 17.6 °C. The air pressure was 6 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 84%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
May 4 » Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.
May 5 » The Bay View massacre: A militia fires into a crowd of protesters in Milwaukee, killing seven.
May 8 » Pharmacist John Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.
May 29 » The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.
June 30 » The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4.
November 27 » German judge Emil Hartwich sustains fatal injuries in a duel, which would become the background for Theodor Fontane's Effi Briest.
Day of marriage September 3, 1912
The temperature on September 3, 1912 was between 5.1 °C and 18.4 °C and averaged 12.4 °C. There was 7.9 hours of sunshine (58%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
June 8 » Carl Laemmle incorporates Universal Pictures.
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.
November 12 » King George I of Greece makes a triumphal entry into Thessaloniki after its liberation from 482 years of Ottoman rule.
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
Day of death February 21, 1949
The temperature on February 21, 1949 was between 5.6 °C and 14.8 °C and averaged 10.3 °C. There was 1.7 mm of rain during 1.5 hours. There was 7.5 hours of sunshine (73%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
April 5 » A fire in a hospital in Effingham, Illinois, kills 77 people and leads to nationwide fire code improvements in the United States.
May 9 » Rainier III becomes Prince of Monaco.
June 19 » The first ever NASCAR race was held at Charlotte Speedway, where Jim Roper would win the inaugural event.
July 21 » The United States Senate ratifies the North Atlantic Treaty.
August 3 » The Basketball Association of America and the National Basketball League finalize the merger that would create the National Basketball Association.
December 27 » Indonesian National Revolution: The Netherlands officially recognizes Indonesian independence. End of the Dutch East Indies.
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/I188319.php : accessed February 8, 2026), "Jan Visser (1886-1949)".
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