Ken Follett

They ate a lot of pork and quite a lot of beef and lamb.

And that's why I think there must have been a lot of grazing in the Stone Age.

And I set Circle of Days around, not just at Stonehenge, but all around Stonehenge.

Because the thing about Stonehenge is that the soil is not very good for cultivation.

And even today, there are not many farms on Salisbury Plain.

There are not many farms.

One or two, particularly in the river valleys where the soil is better, but for most of Salisbury Plain, you can't farm it.

And so it was grassland.

You could certainly keep cattle and sheep.

You can keep pigs anywhere, of course.

They seem to find food anywhere they are, but actual grazing animals.

So, of course, that sort of fits, doesn't it?

Because you've got a vast plain.

It's something like 300 square miles, Salisbury Plain.

Room for a jolly good herd of cattle and sheep and so on.

And at one end of it, this monument...

that must have been built by people who were so well off for pork and lamb that they actually had time to erect this enormous monument.

Of course, that's one of the questions is how they had time.

I think the answer is because they were pretty well off.

Then, of course, there's the question, if they had a bit of spare time,