A word from Alfred Watkins:
"Presume a primitive people, with few or no enclosures, wanting a few necessities only to be had from a distance. The shortest way to such a distant point was a straight line, the human way of attaining a straight line is by sighting, and accordingly all these early trackways were straight, and laid out in much the same way that a marksman gets the back and fore sights of his rifle in line with the target."
Early British Trackways (1922)
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