1669

Events
 March 11 – Mount Etna erupts, destroying the town of Nicolosi and killing 20,000 people.
 July – The Hanseatic League, 400 years after it was formed, holds its last official meeting in Lübeck.

Date unknown
 Phosphorus is discovered by Hennig Brand.
 Antonio Stradivari makes his first violin.

Deaths
 December 9 – Pope Clement IX (b. 1600)