The temperature on January 21, 1877 was about 6.9 °C. The air pressure was 1 kgf/m2 and came mainly from the northwest. The airpressure was 78 cm mercury. The atmospheric humidity was 84%. Source: KNMI
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
June 17 » American Indian Wars: Battle of White Bird Canyon: The Nez Perce defeat the U.S. Cavalry at White Bird Canyon in the Idaho Territory.
June 20 » Alexander Graham Bell installs the world's first commercial telephone service in Hamilton, Ontario, Canada.
August 9 » Indian Wars: Battle of the Big Hole: A small band of Nez Percé Indians clash with the United States Army.
October 5 » The Nez Perce War in the northwestern United States comes to an end.
November 21 » Thomas Edison announces his invention of the phonograph, a machine that can record and play sound.
December 6 » The first edition of The Washington Post is published.
Day of death February 9, 1921
The temperature on February 9, 1921 was between -0.5 °C and 3.3 °C and averaged 1.4 °C. There was 0.9 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 15 » Talaat Pasha, former Grand Vizir of the Ottoman Empire and chief architect of the Armenian Genocide is assassinated in Berlin by a 23-year-old Armenian, Soghomon Tehlirian.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
August 3 » Major League Baseball Commissioner Kenesaw Mountain Landis confirms the ban of the eight Chicago Black Sox, the day after they were acquitted by a Chicago court.
October 5 » The World Series is the first to be broadcast on radio.
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/I51696.php : accessed October 6, 2026), "Roelof Poelstra (1877-1921)".
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