Wikipedia:Selected anniversaries/December 11
- 1282 - Llywelyn ap Gruffudd, the last independent Prince of Wales, was killed in an ambush near Builth Wells.
- 1931 - The Statute of Westminster gave complete legislative independence to Canada, Australia, New Zealand, South Africa, the Irish Free State and Newfoundland.
- 1994 - Boris Yeltsin ordered Russian troops into Chechnya
- 2001 - The People's Republic of China joined the World Trade Organization
Recent days: December 10 – December 9 – December 8