But the whole ‘The Mayans believed the world would end in 2012’ thing is too cool to pass up.
Actually the Mayans don’t seem to have believed that, it is just that their calendar ticks over then, like an odometer.
But there are some odd references to gods returning then, so who knows? Well, one reference. And it’s fragmentary. But that probably just means someone tried to hide it. Or something.
This is an even more interesting circle:
It is a geometric representation of the first ten digits of Pi.
Whatever else all this means, it certainly means that there are some people in Wiltshire with mathematical and artistic talent, decent lawnmowers, and plenty of time on their hands.