Wikipedia:Selected anniversaries/December 6
December 6: Independence Day in Finland (1917)
- 1768 - The first edition of the Encyclopædia Britannica was published.
- 1922 - The Irish Free State came into existence, one year after the signing of the Anglo-Irish Treaty.
- 1957 - The Project Vanguard attempt to launch the United States's first satellite was thwarted by a launchpad explosion.
- 1989 - Marc Lépine killed 14 women in the École Polytechnique Massacre in Montreal, leading to Canadian gun control laws.
- 1992 - The Babri Mosque in Ayodhya was destroyed by members of the Vishwa Hindu Parishad and associated groups, believing it was built on the birthplace of Rama.
Recent days: December 5 – December 4 – December 3