Editing 1866 (section)

=== October–December ===
[[File:AlfredNobel2.jpg|thumb|[[Alfred Nobel]] invents dynamite in 1866]]
* [[October 12]] – The [[Treaty of Vienna (1866)|Treaty of Vienna]] ends the war between Austria and Italy; it formalizes the annexation of [[Venetia (region)|Venetia]] by Italy.
* [[October 14]] – French troops under the command of Rear Admiral [[Pierre-Gustave Roze]] land at [[Ganghwa Island]], Korea, as part of [[French campaign against Korea (1866)|a punitive expedition against that kingdom]] for the execution of French [[Jesuit]] priests. It is the first military contact between Korea and a Western force.
* [[October 22]] – The office of [[State President of the South African Republic]] is created by constitutional amendment approved at a session of the ''Volksraad''.<ref name="ZAR">[http://www.archontology.org/nations/south_africa/transvaal/00_1857_1877_s.php Archontology.org: A Guide for Study of Historical Offices, South African Republic (Transvaal): Heads of State: 1857–1877] (Accessed on 14 April 2017)</ref>
* [[November 7]] – The Ruse–[[Varna, Bulgaria|Varna]] railway line (the first railway in [[Bulgaria]]) officially opens.
* [[December 12]]– [[Oaks explosion]]: The worst mining disaster in England kills 383 miners and rescuers.
* [[December 18]] – The [[College of Wooster]] is founded in [[Ohio]].<ref>{{cite web|title=Fast Facts|url=http://www.wooster.edu/about/facts|publisher=The College of Wooster|access-date=2013-04-08|archive-date=April 19, 2013|archive-url=https://web.archive.org/web/20130419134824/http://www.wooster.edu/about/facts|url-status=dead}}</ref>