Historical events on the 15th of November
- 1315 – Battle of Morgarten: The Schweizer Eidgenossenschaft ambushes the army of Leopold I.
- 1760 – The secondly-built Castellania in Valletta is officially inaugurated with the blessing of the interior Chapel of Sorrows.
- 1889 – Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.