January 11 » William Herschel discovers Titania and Oberon, two moons of Uranus.
January 25 » Shays's Rebellion: The rebellion's largest confrontation, outside the Springfield Armory, results in the killing of four rebels and the wounding of twenty.
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.
August 6 » Sixty proof sheets of the Constitution of the United States are delivered to the Constitutional Convention in Philadelphia, Pennsylvania.
September 17 » The United States Constitution is signed in Philadelphia.
December 7 » Delaware becomes the first state to ratify the United States Constitution.
Day of death January 20, 1870
The temperature on January 20, 1870 was about -1.0 °C. The air pressure was 11 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 73%. 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 25 » Hiram Rhodes Revels, a Republican from Mississippi, is sworn into the United States Senate, becoming the first African American ever to sit in Congress.
March 30 » Texas is readmitted to the United States Congress following Reconstruction.
August 6 » Franco-Prussian War: The Battle of Spicheren is fought, resulting in a Prussian victory.
September 20 » The Bersaglieri corps enter Rome through the Porta Pia, and complete the unification of Italy.
December 12 » Joseph H. Rainey of South Carolina becomes the second black U.S. congressman.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P5475.php : accessed February 13, 2026), "George Francis Seymour-Conway (1787-1870)".
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