The temperature on May 23, 1886 was about 24.7 °C. There was 3 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 71%. 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.
February 23 » Charles Martin Hall produced the first samples of aluminium from the electrolysis of aluminium oxide, after several years of intensive work. He was assisted in this project by his older sister, Julia Brainerd Hall.
March 1 » The Anglo-Chinese School, Singapore is founded by Bishop William Oldham.
June 10 » Mount Tarawera in New Zealand erupts, killing 153 people and burying the famous Pink and White Terraces. Eruptions continue for three months creating a large, 17km long fissure across the mountain peak.
July 3 » The New-York Tribune becomes the first newspaper to use a linotype machine, eliminating typesetting by hand.
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 death August 9, 1966
The temperature on August 9, 1966 was between 9.8 °C and 19.6 °C and averaged 14.9 °C. There was 8.7 mm of rain during 1.4 hours. There was 3.7 hours of sunshine (25%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 13 » Robert C. Weaver becomes the first African American Cabinet member when he is appointed United States Secretary of Housing and Urban Development.
March 1 » Venera 3 Soviet space probe crashes on Venus becoming the first spacecraft to land on another planet's surface.
August 23 » Lunar Orbiter 1 takes the first photograph of Earth from orbit around the Moon.
September 12 » Gemini 11, the penultimate mission of NASA's Gemini program, and the current human altitude record holder (except for the Apollo lunar missions).
October 22 » The Supremes become the first all-female music group to attain a No. 1 selling album (The Supremes A' Go-Go).
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: Paul Potten, "Family tree Potten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-potten/I570.php : accessed February 26, 2026), "Sebastiana "Jana" Swinkels (1886-1966)".
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