The temperature on September 18, 1869 was about 21.4 °C. The air pressure was 13 kgf/m2 and came mainly from the southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 73%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
January 30 » The first Anglo-Japanese Alliance is signed in London.
March 18 » Macario Sakay issues Presidential Order No. 1 of his Tagalog Republic.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
November 21 » The Philadelphia Football Athletics defeated the Kanaweola Athletic Club of Elmira, New York, 39–0, in the first ever professional American football night game.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of death January 17, 1953
The temperature on January 17, 1953 was between 1.0 °C and 3.6 °C and averaged 2.4 °C. There was 0.5 mm of rain during 3.5 hours. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
April 13 » CIA director Allen Dulles launches the mind-control program Project MKUltra.
April 24 » Winston Churchill is knighted by Queen Elizabeth II.
September 13 » Nikita Khrushchev is appointed General Secretary of the Communist Party of the Soviet Union.
October 1 » A Mutual Defense Treaty Between the United States and the Republic of Korea is concluded in Washington, D.C.
October 29 » BCPA Flight 304 DC-6 crashes near San Francisco.
December 24 » Tangiwai disaster: In New Zealand's North Island, at Tangiwai, a railway bridge is damaged by a lahar and collapses beneath a passenger train, killing 151 people.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I3972.php : accessed January 27, 2026), "Grietje Koppen (1869-1953)".
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