The temperature on February 4, 1870 was about 6.6 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. 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 9 » US president Ulysses S. Grant signs a joint resolution of Congress establishing the U.S. Weather Bureau.
March 16 » The first version of the overture fantasy Romeo and Juliet by Tchaikovsky receives its première performance.
April 13 » The New York City Metropolitan Museum of Art is founded.
August 2 » Tower Subway, the world's first underground tube railway, opens in London, England, United Kingdom.
October 27 » Franco-Prussian War: Marshal Bazaine surrenders to Prussian forces at the conclusion of the Siege of Metz along with 140,000 French soldiers.
November 1 » In the United States, the Weather Bureau (later renamed the National Weather Service) makes its first official meteorological forecast.
When copying data from this family tree, please include a reference to the origin: Joop Admiraal, "Database Admiraal", database, Genealogy Online (https://www.genealogieonline.nl/database-admiraal/I2963.php : accessed May 3, 2025), "Willem Koopman (1870-????)".
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