The temperature on August 20, 1870 was about 15.9 °C. There was 3 mm of rain. The air pressure was 8 kgf/m2 and came mainly from the northwest. The airpressure was 76 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).
February 15 » Stevens Institute of Technology is founded in New Jersey, USA and offers the first Bachelor of Engineering degree in Mechanical Engineering.
March 1 » Marshal F. S. López dies during the Battle of Cerro Corá thus marking the end of the Paraguayan War.
April 13 » The New York City Metropolitan Museum of Art is founded.
July 19 » Franco-Prussian War: France declares war on Prussia.
September 1 » Franco-Prussian War: The Battle of Sedan is fought, resulting in a decisive Prussian victory.
October 2 » A plebiscite held in Rome, supports annexation of city of Rome by the Kingdom of Italy.
Day of marriage September 19, 1921
The temperature on September 19, 1921 was between 9.2 °C and 20.2 °C and averaged 14.2 °C. There was 5.9 hours of sunshine (47%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
January 12 » Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.
March 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
July 22 » Rif War: The Spanish Army suffers its worst military defeat in modern times to the Berbers of the Rif region of Spanish Morocco.
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 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
October 29 » The Link River Dam, a part of the Klamath Reclamation Project, is completed.
Day of death December 12, 1921
The temperature on December 12, 1921 was between -3.1 °C and 5.6 °C and averaged 2.0 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. 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.
February 22 » After Russian forces under Baron Roman von Ungern-Sternberg drive the Chinese out, the Bogd Khan is reinstalled as the emperor of Mongolia.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
March 18 » The Kronstadt rebellion is suppressed by the Red Army.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
October 21 » President Warren G. Harding delivers the first speech by a sitting U.S. President against lynching in the deep South.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
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/I101255.php : accessed October 17, 2026), "Roelf Zwart (1870-1921)".
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