July 9 » The Swedish Navy captures one third of the Russian Baltic fleet.
July 12 » The Civil Constitution of the Clergy is passed in France by the National Constituent Assembly.
July 14 » French Revolution: Citizens of Paris celebrate the unity of the French people and the national reconciliation in the Fête de la Fédération.
July 31 » The first U.S. patent is issued, to inventor Samuel Hopkins for a potash process.
December 6 » The U.S. Congress moves from New York City to Philadelphia.
December 17 » The Aztec calendar stone is discovered at El Zócalo, Mexico City.
Day of death May 20, 1867
The temperature on May 20, 1867 was about 12.5 °C. There was 3 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 95%. Source: KNMI
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I87881.php : accessed January 29, 2026), "Geert Jans Hindrik Lokken (1790-1867)".
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