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.
January 18 » Modern field hockey is born with the formation of The Hockey Association in England.
January 29 » Karl Benz patents the first successful gasoline-driven automobile.
March 29 » John Pemberton brews the first batch of Coca-Cola in a backyard in Atlanta.
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.
June 13 » A fire devastates much of Vancouver, British Columbia.
October 28 » President Cleveland dedicates the Statue of Liberty.
Day of death December 21, 1966
The temperature on December 21, 1966 was between 0.7 °C and 5.2 °C and averaged 2.7 °C. There was 2.0 mm of rain during 1.1 hours. There was 0.9 hours of sunshine (12%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
March 31 » The Soviet Union launches Luna 10 which later becomes the first space probe to enter orbit around the Moon.
May 6 » Myra Hindley and Ian Brady are sentenced to life imprisonment for the Moors murders in England.
July 10 » The Chicago Freedom Movement, led by Martin Luther King, Jr., holds a rally at Soldier Field in Chicago. As many as 60,000 people attend.
October 21 » A colliery spoil tip collapses on the village of Aberfan in Wales, killing 144 people, mostly schoolchildren.
November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).
November 15 » Project Gemini: Gemini 12 completes the program's final mission, when it splashes down safely in the Atlantic Ocean.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I283095.php : accessed February 21, 2026), "Schelto Tonkens (1886-1966)".
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