Regarding the association between the Great Pyramid of Giza and precession (using 25,920 years). Can anyone share comments on how the ancients might have calculated precession to this accuracy? I feel that a precise calculation for precession is a core piece of support for earlier civilizations and I surmise (or perhaps heard in the past) that it is because calculating precession to such accuracy would take a long time of observations indicating earlier civilizations have also been observing or even having calculated precession and handed it down to the Egyptians. Does anyone know more about what method Hancock has expressed on how precession was calculated?
Thank you.
Walter
Thank you.
Walter
