It looks like Mark Zuckerberg could have yet more legal battles on his hands.

It's now not just the Winklevoss twins who can lay claim to inventing Facebook, it seems that there was another chap who had the idea.

And this man, creative director of Manhattan advertising firm Sterling Cooper, Don Draper, was around 50 years ahead of Zuck.

In all seriousness, this is one of the best mash-ups that we've seen in ages. It uses the series one finale, The Wheel, where Don successfully pitched an ad campaign for Carousel slide projectors to Eastman Kodak, with some Timeline-themed slides stitched in.

The best bit? 16 likes for Don telling Pete to "shut up".

Awesome, simply awesome and bravo to its creator.