Timosthenes of Rhodes Said 12 Winds Maps Too Difficult to Calculate as Method of Geometric Precession Measure Lost

Having been tremendous navigators, the Ionians though lost their ancient method of measuring the earth’s axial precession rate against the backdrop of the constellations for geometry (see Page titled Great Pyramid for Navigation), thus Timosthenes’ statement circa 250 b. c. that the 12 Winds Maps were much more accurate than the 8 Winds Maps but were too difficult to produce (although the Antikythera Device from that era seems geared to have measured that axial precession rate for geometry).