this claim, writing that Pytheas has "been found, upon scrutiny, to be an arch falsifier, but the men who have seen Britain and Ireland do not mention Thule, though they speak of other islands, small ones, about Britain". Strabo adds the following in Book 5:

"Now Pytheas of Massilia tells us that Thule, the most northerly of the Britannic Islands, is farthest north, and that there the circle of the summer tropic is the same as the Arctic Circle. But from the other writers I learn nothing on the subject - neither that there exists a certain island by the name of Thule, nor whether the northern regions are inhabitable up to the point where the summer tropic becomes the Arctic Circle."