They sequentially moved to the places stated as visited by Shri Ram in the Valmiki Ramayan.Starting from Ayodhya, they went right up to Rameshwaram.For example: Multi-disciplinary scientific research reports, prepared during last three- four decades by making use of such scientific tools and techniques, were used for dating the events narrated in Valmiki Ramayan and resuts were amazing! Moon near the star Punar vasu (Pollux) in Gemini Constellation. This data was entered into the ‘Planetarium Gold’ software, the results indicated that this was exactly the location of planets/stars vis-à-vis zodiac constellations on the 10th of January noon time in the year 5114 BC if viewed from latitude/longitude of Ayodhya (25°N 81°E). By making use of software to convert solar calendar into lunar calendar, it was found that this date also happened to be the 9th day of Shukla Paksha in ‘Chaitra’ month and the time was around 12 to 1 noontime.
However, during last 30-40 years, several new scientific tools and techniques have been developed, which are capable to determining the dates of any ancient events in scientific and precise manner.
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.
Thus Shri Ram had come back to Ayodhya when he was 39 years old (5114-5075). Ram Autar, have researched on places visited by Shri Ram during 14 years of exile.
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.
Therefore the history of growth of civilization in the world is not 4 to 5 thousand years old but it is more than 10,000 years old.