In Hamlet's Mill there is an illustration showing how the precession moved spring equinox among the constellations:

A kind of 'Time Zero' is located around ca 5.000 BC, Orion arrived about 1.000 years later and yet another 2.000 years later the Pleiades arrived, ca 2.200 BC.

If the pyramids of Gizeh were built around 2.500 BC - about 1.500 years after Orion had announced spring equinox - and yet oriented after the Belt stars of Orion, it would not be astounding if the maitaki type of glyph would be used to refer to a new year and showing signs alluding to the Belt of Orion.

Time had moved the equinoxes ahead with around 1/4 of a year. 26000 / 4 = 6500.