Levels of dating
2 to 7 of map 1) and reached on the banks of Saryu river.
After crossing the boundary of Kosal Desh, they entered Shringaverapura (Srigraur) which was kingdom of Nishadraj Guh and is famous for Kewat taking them across Ganga in his boat (20 km from Allahabad).
Valmiki Ramayan contains graphic and poetic details of eight constellations during Hanuman’s return journey from Sri Lanka to Sunaabh Hill in the middle of the sea which apparently took about four and a half hours from AM to 11 AM.
All these details of planets and nakshtras with reference to eight constellations described in Sarga 57 (1, 2, 3) of chapter five tally exactly with the sky view generated by the software for the morning of 14th September 5076 BC from Lanka.
On the basis of planetary configurations described in various other chapters of Valmiki Ramayan, the date on which Ravana was killed works out to be 4th December 5076 BC and Shri Ram completed 14 years of exile on 2nd January, 5075 BC and that day was also Navami of Shukla Paksha in Chaitra month.
Thousands of years later, when some of these Himalayan Rivers became non-perennial or started drying up, some of these people started moving towards Central Asia and Europe.
As per ecologists this ecological cycle has been repeating itself and will get repeated after every ice age and during the beginnings of all Holocene cycles.