March 11 » The signing of the Treaty of Mangalore brings the Second Anglo-Mysore War to an end.
March 22 » The Emerald Buddha is moved with great ceremony to its current location in Wat Phra Kaew, Thailand.
April 9 » The Treaty of Paris, ratified by the United States Congress on January 14, 1784, is ratified by King George III of the Kingdom of Great Britain, ending the American Revolutionary War. Copies of the ratified documents are exchanged on May 12, 1784.
June 4 » Élisabeth Thible becomes the first woman to fly in an untethered hot air balloon. Her flight covers four kilometres in 45 minutes, and reached 1,500 metres altitude (estimated).
August 17 » Classical composer Luigi Boccherini receives a pay rise of 12000 reals from his employer, the Infante Luis, Count of Chinchón.
October 22 » Russia founds a colony on Kodiak Island, Alaska.
Day of death November 10, 1787
The temperature on November 10, 1787 was about 8.0 °C. Source: KNMI
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.
September 28 » The Congress of the Confederation votes to send the newly-written United States Constitution to the state legislatures for approval.
October 29 » Mozart's opera Don Giovanni receives its first performance in Prague.
December 7 » Delaware becomes the first state to ratify the United States Constitution.
December 18 » New Jersey becomes the third state to ratify the U.S. Constitution.
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The Family tree De Keyser publication was prepared by Guido de Keyser (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Guido de Keyser, "Family tree De Keyser", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-keyser/I452.php : accessed May 15, 2024), "(Jacomina) de Beer Jacomina (1784-1787)".
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