The temperature on March 4, 1870 was about 2.6 °C. There was 13 mm of rain. The air pressure was 7 kgf/m2 and came mainly from the northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 93%. 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.
February 23 » Reconstruction Era: Post-U.S. Civil War military control of Mississippi ends and it is readmitted to the Union.
June 26 » The Christian holiday of Christmas is declared a federal holiday in the United States.
August 16 » Franco-Prussian War: The Battle of Mars-la-Tour is fought, resulting in a Prussian victory.
August 18 » Franco-Prussian War: Battle of Gravelotte is fought.
October 7 » Franco-Prussian War: Léon Gambetta escapes the siege of Paris in a hot-air balloon.
When copying data from this family tree, please include a reference to the origin: Marjo van Leeuwen, "Family tree Van Leeuwen-Van der Speck en vele anderen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-leeuwen-van-der-speck/R6693.php : accessed May 9, 2025), "Jan van Roon (1838-????)".
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