January 11 » William Herschel discovers Titania and Oberon, two moons of Uranus.
May 25 » After a delay of 11 days, the United States Constitutional Convention formally convenes in Philadelphia after a quorum of seven states is secured.
June 20 » Oliver Ellsworth moves at the Federal Convention to call the government the 'United States'.
September 17 » The United States Constitution is signed in Philadelphia.
October 29 » Mozart's opera Don Giovanni receives its first performance in Prague.
December 18 » New Jersey becomes the third state to ratify the U.S. Constitution.
Day of death April 9, 1866
The temperature on April 9, 1866 was about 18.9 °C. There was 3 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 83%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
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).
March 27 » President of the United States of America Andrew Johnson vetoes the Civil Rights Act of 1866. His veto is overridden by Congress and the bill passes into law on April 9.
May 22 » Oliver Winchester founded the Winchester Repeating Arms
July 20 » Austro-Prussian War: Battle of Lissa: The Austrian Navy, led by Admiral Wilhelm von Tegetthoff, defeats the Italian Navy near the island of Vis in the Adriatic Sea.
July 24 » Reconstruction: Tennessee becomes the first U.S. state to be readmitted to the Union following the American Civil War.
October 22 » A plebiscite ratifies the annexion of Veneto and Mantua to Italy, which had occurred three days before, on October 19.
December 12 » Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers.
When copying data from this family tree, please include a reference to the origin: Murphy Torn, "Family tree Torn", database, Genealogy Online (https://www.genealogieonline.nl/torn-stamboom/P6194.php : accessed January 9, 2026), "Johanna Floris (1787-1866)".
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