The Great Pyramid of Giza had a base perimeter length of exactly half a nautical mile when it was built, 1,760 royal cubits (of 20.63 modern inches each), also 3,000 olympic feet (of 12.16 modern inches), so that the saku unit of length of Japan is 11.93 inches, as reckoned today, originally it almost certainly was 12.16 modern inches, and the ken or hiro six times that, like a fathom or fethm to the Atlanteans (their fot the same as the saku and olympic foot), those measures calculated by geometry by the precession rate of the earth’s axis (see Page here titled Great Pyramid of Navigation).
