When was Titian born?
Nobody knows. But, if you are with Chris Tarrant and have to phone a friend, try David Cameron, art historian.
Even if you're wrong, with some eager staff work and wiki-manipulation, you might be able to win on appeal.
Remember, the right practically owns this interwebnet thing.
(Hat tip to Paul Waugh of the Standard and Ben Brogan of the Mail for highly amusing blow-by-blow blogging of the Titiangate affair and the excellent links).