Editing 1787 (section)

=== October&ndash;December ===
* [[October 1]] &ndash; [[Russo-Turkish War (1787–92)]] &ndash; [[Battle of Kinburn (1787)|Battle of Kinburn]]: [[Alexander Suvorov]], though sustaining a wound, routs the Turks.
* [[October 27]] &ndash; The first of ''[[The Federalist Papers]]'', a series of essays calling for ratification of the [[U.S. Constitution]], is published in ''[[The Independent Journal]]'', a New York newspaper.
* [[October 29]] &ndash; [[Wolfgang Amadeus Mozart]]'s opera ''[[Don Giovanni]]'' ([[libretto]] by [[Lorenzo Da Ponte]]) premieres in the [[Estates Theatre]] in [[Prague]].
* [[November 1]] &ndash; The first secondary education school open to girls in Sweden, ''[[Societetsskolan]]'', is founded in Gothenburg.
* [[November 21]] &ndash; [[Treaty of Versailles (1787)]] signed, forming an alliance between the [[Kingdom of France]] and the Lord [[Gia Long|Nguyễn Phúc Ánh]], future Emperor of Vietnam.
* [[December 3]] &ndash; [[James Rumsey]] demonstrates his water-jet propelled boat on the [[Potomac River]].
* [[December 7]] &ndash; [[Delaware]] ratifies the Constitution, and becomes the first [[U.S. state]].
* [[December 8]] &ndash; [[La Purisima Mission]] is founded by Padre [[Fermín Lasuén]] as the eleventh of the [[Spanish missions in California]].
* [[December 12]] &ndash; [[Pennsylvania]] becomes the second [[U.S. state]].
* [[December 18]] &ndash; [[New Jersey]] becomes the third [[U.S. state]].
* [[December 23]] &ndash; Captain [[William Bligh]] sets sail from England for [[Tahiti]], on {{HMS|Bounty}}.<ref name="Cassell's Chronology339340"/>