The temperature on December 24, 1886 was about 1.7 °C. There was 1 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 96%. 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.
March 29 » John Pemberton brews the first batch of Coca-Cola in a backyard in Atlanta.
May 8 » Pharmacist John Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
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.
November 14 » Friedrich Soennecken first developed the hole puncher, a type of office tool capable of punching small holes in paper.
Day of marriage May 15, 1915
The temperature on May 15, 1915 was between 0.1 °C and 12.8 °C and averaged 6.7 °C. There was 12.9 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
June 29 » The North Saskatchewan River flood of 1915 is the worst flood in Edmonton history.
July 7 » The First Battle of the Isonzo comes to an end.
July 28 » The United States begins a 19-year occupation of Haiti.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
October 14 » World War I: Bulgaria joins the Central Powers.
Day of death July 21, 1953
The temperature on July 21, 1953 was between 12.0 °C and 28.2 °C and averaged 21.2 °C. There was 12.7 hours of sunshine (79%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
February 11 » Cold War: U.S. President Dwight D. Eisenhower denies all appeals for clemency for Julius and Ethel Rosenberg.
February 19 » Book censorship in the United States: The Georgia Literature Commission is established.
March 5 » Joseph Stalin, the longest serving leader of the Soviet Union, dies at his Volynskoe dacha in Moscow after suffering a cerebral hemorrhage four days earlier.
April 24 » Winston Churchill is knighted by Queen Elizabeth II.
August 12 » The 7.2 Ms Ionian earthquake shakes the southern Ionian Islands with a maximum Mercalli intensity of X (Extreme). Between 445 and 800 people are killed.
November 21 » The Natural History Museum, London announces that the "Piltdown Man" skull, initially believed to be one of the most important fossilized hominid skulls ever found, is a hoax.
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/I203833.php : accessed December 30, 2025), "Grietje Keijzer (1886-1953)".
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