The temperature on April 23, 1889 was about 14.1 °C. The air pressure was 10 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 49%. Source: KNMI
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
February 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
April 22 » At noon, thousands rush to claim land in the Land Rush of 1889. Within hours the cities of Oklahoma City and Guthrie are formed with populations of at least 10,000.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
Day of marriage December 23, 1916
The temperature on December 23, 1916 was between 0.6 °C and 12.5 °C and averaged 5.4 °C. There was 12.7 mm of rain. There was 0.2 hours of sunshine (3%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. 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.
February 29 » Child labor: In South Carolina, the minimum working age for factory, mill, and mine workers is raised from 12 to 14 years old.
August 2 » World War I: Austrian sabotage causes the sinking of the Italian battleship Leonardo da Vinci in Taranto.
September 3 » World War I: Leefe Robinson destroys the German airship Schütte-Lanz SL 11 over Cuffley, north of London; the first German airship to be shot down on British soil.
November 1 » In Russia, Pavel Milyukov delivers in the State Duma the famous "stupidity or treason" speech, precipitating the downfall of the government of Boris Stürmer.
November 5 » The Everett massacre takes place in Everett, Washington as political differences lead to a shoot-out between the Industrial Workers of the World organizers and local police.
December 23 » World War I: Battle of Magdhaba: Allied forces defeat Turkish forces in the Sinai Peninsula.
Day of death May 15, 1959
The temperature on May 15, 1959 was between 9.0 °C and 18.4 °C and averaged 13.9 °C. There was 0.1 mm of rain during 0.3 hours. There was 11.0 hours of sunshine (70%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 11 » The Federation of Arab Emirates of the South is created as a protectorate of the United Kingdom.
March 18 » The Hawaii Admission Act is signed into law.
April 9 » Project Mercury: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven".
May 19 » The North Vietnamese Army establishes Group 559, whose responsibility is to determine how to maintain supply lines to South Vietnam; the resulting route is the Ho Chi Minh trail.
July 24 » At the opening of the American National Exhibition in Moscow, U.S. Vice President Richard Nixon and Soviet Premier Nikita Khrushchev have a "Kitchen Debate".
September 26 » Typhoon Vera, the strongest typhoon to hit Japan in recorded history, makes landfall, killing 4,580 people and leaving nearly 1.6 million others homeless.
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/I79835.php : accessed October 2, 2026), "Klaas de Boer (1889-1959)".
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