The temperature on May 26, 1886 was about 14.1 °C. There was 10 mm of rain. The air pressure was 14 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 79%. 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.
March 1 » The Anglo-Chinese School, Singapore is founded by Bishop William Oldham.
May 5 » The Bay View massacre: A militia fires into a crowd of protesters in Milwaukee, killing seven.
May 29 » The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
July 3 » The New-York Tribune becomes the first newspaper to use a linotype machine, eliminating typesetting by hand.
Day of death May 21, 1942
The temperature on May 21, 1942 was between 8.0 °C and 15.2 °C and averaged 12.5 °C. There was 1.4 mm of rain during 3.3 hours. There was 1.5 hours of sunshine (9%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
March 29 » The Bombing of Lübeck in World War II is the first major success for the RAF Bomber Command against Germany and a German city.
August 16 » World War II: A naval L-class blimp drifts in from the Pacific and eventually crashes in Daly City, California. The two-man crew cannot be found.
September 21 » The Holocaust in Poland: At the end of Yom Kippur, Germans order Jews to permanently move from Konstantynów to Biała Podlaska.
September 23 » World War II: The Matanikau action on Guadalcanal begins: U.S. Marines attack Japanese units along the Matanikau River.
December 10 » World War II: Government of Poland in exile send Raczyński's Note (the first official report on the Holocaust) to 26 governments who signed the Declaration by United Nations.
December 22 » World War II: Adolf Hitler signs the order to develop the V-2 rocket as a weapon.
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/I67160.php : accessed October 25, 2026), "Hendrik Pietens (1886-1942)".
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