Re Thuban as Pole Star.
I'm not overly concerned as to whether it was or it wasn't. My confusion was due to your statement that it wasn't and the grounds upon which you made the statement. For instance are you positive that the Chinese didn't use it? Have you considered that an ancient star map may look nothing like a modern star map. What about the astronomical information embedded in The Iliad and the Bible, and presumably the Vedic literature? Have you eliminated all those? Is this your opinion or Velikovsky's?
Re the alignment of ancient buildings. The ancients went to great lengths to align their buildings. As I've stated elsewhere, the choices of constellations, asterisms and individual stars were not arbitrary, they were part and parcel of the philosophy.
Some of the Egyptian temples have been constructed in a way connecting to the star of Sirius when - each year in the summer after a period of invisibility of 70 days - it rose (i.e. its Heliacal rising) together with the sun that the light would travel down the temples' main
corridor. In that moment, Sirius would place its shining spot on the altar in the innermost sanctum of the temple.
......
Re the tomb of Senmut. Velikovsky theorised wrongly. Scholarship has moved on since Velikovsky. Read the above linked article in its entirety, it's long but worth it. There is a navigation menu at the foot of the above link. The article also disagrees with you and theIn a similar way later in Greek temples - for instance in the very Parthenon - being constructed with the direction to the beams of the Stars of the Pleiades. Thus, when the temples were oriented geographically to receive these beams of light into the inner sanctums,
the light-rays were described in a symbolic way as being "transformed into seven women", i.e. "The Seven Sisters", The Pleiades.
http://www.moses-egypt.net/star-map/sen ... ory_en.asp
Saturn theorists about the North celestial pole.
Your references to Plato, Heredotus et al about the planet flipping have no real bearing on precession because a) they may have happened in a previous cycle and b) the would still have been precession if the criteria for precessing were there; the zodiacal constellations would
have been different (to the residents of the former northern hemisphere) but the precessing would still have happened.
As to the question of knowledge of precession prior to Hipparchus, isn't that the central topic of Hamlet's Mill?
The problem Velikovsky and the Saturn theorists have is that they subscribe to Darwinian evolution and therefore, despite protestations to the contrary, view ancients as simple, primitives who couldn't possibly be smarter than moderns. And they all subscribe to the Jungian collective amnesia nonsense despite not having a shred of evidence that there is any such thing as collective amnesia let alone that people from thousands of years ago had it and passed it down to their offspring.