The temperature on May 18, 1886 was about 14.7 °C. The air pressure was 10 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 77%. 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.
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.
May 1 » Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.
June 13 » A fire devastates much of Vancouver, British Columbia.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
November 27 » German judge Emil Hartwich sustains fatal injuries in a duel, which would become the background for Theodor Fontane's Effi Briest.
November 30 » The Folies Bergère stages its first revue.
Day of marriage May 8, 1909
The temperature on May 8, 1909 was between 2.2 °C and 15.4 °C and averaged 9.4 °C. There was 13.7 hours of sunshine (90%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
January 25 » Richard Strauss's opera Elektra receives its debut performance at the Dresden State Opera.
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
June 26 » The Science Museum in London comes into existence as an independent entity.
August 19 » The first automobile race at the Indianapolis Motor Speedway.
September 23 » The novel Le Fantôme de l'Opéra (The Phantom of the Opera), by Gaston Leroux, is published as a serialization in Le Gaulois.
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/I188416.php : accessed October 20, 2026), "Foekje Detmar (1886-????)".
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