Editing 1771 (section)

=== October&ndash;December ===
* [[October 9]] &ndash; The [[Dutch Republic|Dutch]] merchant ship ''[[Vrouw Maria]]'' sinks off the coast of Finland; Captain Raymund Lourens and his crew escape unharmed.
* [[October 17]] &ndash; The opera ''[[Ascanio in Alba]]'' by [[Wolfgang Mozart]], age 15, premieres in [[Milan]].
* [[November 3]] &ndash; Siamese conquest of Ha Tien ends the [[Taksin's reunification of Siam|Siamese civil war of 1767-71]]. 
* [[November 16]] &ndash; During the night the [[River Tyne]], England, floods, destroying many bridges and killing several people; the replacement main bridge at [[Newcastle upon Tyne]] will not be completed until [[1781]].
* [[December 3]] &ndash; The cause of action in [[Sommersett's Case]], which eventually leads to the end of slavery in Great Britain, begins when escaped slave James Somerset is found imprisoned on the ship ''Ann and Mary''.<ref>Gerald Horne, ''The Counter-Revolution of 1776: Slave Resistance and the Origins of the United States of America'' (NYU Press, 2014) p210</ref> 
* [[December 31]] &ndash; Men, women and children of the [[Choctaw]] and [[Chickasaw]] tribes begin a 23-day encampment at [[Mobile, Alabama|Mobile]], part of the British colony of [[West Florida]], at the invitation of British Southern Indian superintendent John Stuart, as their leaders negotiate a treaty.<ref>Richmond F. Brown, ''Coastal Encounters: The Transformation of the Gulf South in the Eighteenth Century'' (University of Nebraska Press, 2007) pp59-62</ref>