May 13 » Captain Arthur Phillip leaves Portsmouth, England, with eleven ships full of convicts (the "First Fleet") to establish a penal colony in Australia.
July 13 » The Continental Congress enacts the Northwest Ordinance establishing governing rules for the Northwest Territory. It also establishes procedures for the admission of new states and limits the expansion of slavery.
September 28 » The Congress of the Confederation votes to send the newly-written United States Constitution to the state legislatures for approval.
October 1 » Russians under Alexander Suvorov defeat the Turks at Kinburn.
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 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.
January 6 » The inauguration of the Musikverein in Vienna, Austria.
March 16 » The first version of the overture fantasy Romeo and Juliet by Tchaikovsky receives its première performance.
July 1 » The United States Department of Justice formally comes into existence.
September 4 » Emperor Napoleon III of France is deposed and the Third Republic is declared.
October 27 » Franco-Prussian War: Marshal Bazaine surrenders to Prussian forces at the conclusion of the Siege of Metz along with 140,000 French soldiers.
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 October 18, 2026), "George Francis Seymour-Conway (1787-1870)".
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