Big Brother Dave's wikifakery

I have been one of those who has always been less censorious about using Wikipedia than most. Sure, its contentious entries are often the subject of partisan editing, and are best ignored. But it is often a good link to online resources for basic facts. Little did we know that there's a team in Tory Central Office dedicated to falsifying history - or at least Wikipedia entries - where it doesn't agree with Big Brother David Cameron's line on things. We're well used to the dodgy use of statistics by the Tories to justify their attacks over education or health. But changing the date of Titian's birth on Wikipedia? Why? Given the pettiness of Cameron's original attack at PMQs, they're obviously just playing follow the leader.