The temperature on November 21, 1886 was about 8.3 °C. The air pressure was 2 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 100%. 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 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.
July 4 » The Canadian Pacific Railway's first scheduled train from Montreal arrives in Port Moody on the Pacific coast, after six days of travel.
August 31 » The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X (Extreme). Sixty people killed with damage estimated at $5–6 million.
September 4 » American Indian Wars: After almost 30 years of fighting, Apache leader Geronimo, with his remaining warriors, surrenders to General Nelson Miles in Arizona.
Day of marriage May 20, 1911
The temperature on May 20, 1911 was between 8.8 °C and 15.8 °C and averaged 11.3 °C. There was 4.2 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
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/I145576.php : accessed October 15, 2026), "Jetske Wybenga (1886-????)".
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