The temperature on April 19, 1870 was about 19.7 °C. The air pressure was 7 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 31%. 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 3 » Construction work begins on the Brooklyn Bridge in New York, United States.
February 15 » Stevens Institute of Technology is founded in New Jersey, USA and offers the first Bachelor of Engineering degree in Mechanical Engineering.
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 8 » The Republic of Ploiești, a failed Radical-Liberal rising against Domnitor Carol of Romania.
August 16 » Franco-Prussian War: The Battle of Mars-la-Tour is fought, resulting in a Prussian victory.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I9354.php : accessed February 6, 2026), "Petrus Jacobus van Zyl (1870-????)".
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