How old is the Vedic Civilization?

Continued From: Sanathana Dharma: How old is the Vedic Civilization? (thoughtsonsanathanadharma.blogspot.com)

The Vedic Brahmana texts mention that the Pleiades was at the spring equinox. And even older texts describe the spring equinox as falling in the constellation Orion. By calculating the precession of equinoxes we can say that the spring equinox coincided with Orion around 4,500 BC.There are references in the Rig Veda to the winter solstice beginning in Aries; again by calculating the precession of equinoxes we reach  6,500 BC.The Puranas while describing the birth of Kartikeya describe that during the war between the gods and Kartikeya, Kartikeya was split. This refers to Kritika (Pleiades) constellation at the winter solstice and Visaka (Libra) at summer solstice. Visaka also means “split”.The Pleiades or Kritika was at winter solstice around 8500 BC. Similarly the Puranas mention that Indra stole the sun’s wheel. This refers to Jyestha being at the summer solstice around 10,000 BC as Indra is the ruler of the star Jyestha. It is further mentioned that Rohini was at winter solstice and that purvabadhra was seen to rise in the east; that is, purvabadhra was at the autumn equinox. All these refer to the year 10,000 B.C. It can be seen that the precession of equinoxes is cyclic and takes 25,800 years to complete one full circle. Hence , Jyestha was at the summer solstice in the year 10,000 BC and it would have been at this position in the year 35,800 BC and so on. Is the vedas referring to Jyeshtha at summer solstice in the year 10,000 B.C or to an earlier precessional cycle ? There is also a verse in the Rig Veda in which the Kashmir valley is described as a lake. The Kashmir valley existed as a lake around 50,000 BC! 

References:

Astro dating of event and select vignett from Indian History edited by Kosla Vepa

Gods, Sages & Kings by David Frawley

Underworld by Graham Hancock

Continued on: Sanathana Dharma: How old is the Vedic Civilization? (thoughtsonsanathanadharma.blogspot.com)