Wikipedia:Selected anniversaries/November 27
- 1895 – Swedish chemist and industrialist Alfred Nobel (pictured) signed his last will and testament, setting aside the bulk of his estate to establish the Nobel Prize after his death.
- 1919 – The first fraternity exclusively for collegiate band members, Kappa Kappa Psi, was founded on the campus of Oklahoma State University in Stillwater.
- 1999 – The Labour Party defeated the governing National Party in the New Zealand general election, with Labour's Helen Clark becoming the country's first female prime minister to have won office at an election.
- 2009 – A bomb exploded under, and derailed, a Russian high-speed train travelling between Moscow and Saint Petersburg, killing 28 passengers.