The temperature on February 15, 1887 was about 4.2 °C. The air pressure was 18 kgf/m2 and came mainly from the east. The airpressure was 77 cm mercury. The atmospheric humidity was 44%. 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 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
Day of marriage November 14, 1912
The temperature on November 14, 1912 was between 3.3 °C and 6.7 °C and averaged 5.4 °C. There was 3.0 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
April 2 » The ill-fated RMSTitanic begins sea trials.
April 10 » RMS Titanic sets sail from Southampton, England on her maiden and only voyage.
June 8 » Carl Laemmle incorporates Universal Pictures.
October 14 » Former president Theodore Roosevelt is shot and mildly wounded by John Flammang Schrank. With the fresh wound in his chest, and the bullet still within it, Roosevelt delivers his scheduled speech.
December 6 » The Nefertiti Bust is discovered.
Day of death February 9, 1963
The temperature on February 9, 1963 was between -3.5 °C and 3.5 °C and averaged 0.8 °C. There was 0.1 mm of rain during 0.7 hours. There was 0.3 hours of sunshine (3%). The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 13 » Coup d'état in Togo results in the assassination of president Sylvanus Olympio.
February 19 » The publication of Betty Friedan's The Feminine Mystique reawakens the feminist movement in the United States as women's organizations and consciousness raising groups spread.
October 4 » Hurricane Flora kills 6,000 in Cuba and Haiti.
December 7 » Instant replay makes its debut during the Army-Navy football game in Philadelphia, Pennsylvania, United States.
December 10 » An assassination attempt on the British High Commissioner in Aden kills two people and wounds dozens more.
December 14 » The dam containing the Baldwin Hills Reservoir bursts, killing five people and damaging hundreds of homes in Los Angeles, California.
When copying data from this family tree, please include a reference to the origin: J. Post, "Ancestors J. Post", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-j-post/I170.php : accessed February 22, 2026), "Jan van der Grift (1887-1963)".
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