What is the opinion of western scholars from ancient times?
According to the writings of both the Greek and the Romans such as Pliny, Arrian and Solinus as well as Megastathanes who wrote a history of ancient India and who was present as an eyewitness when Alexander the Great arrived in India in 326 B.C. was that before him were 154 kings who ruled back to 6777 B.C. This also follows the Vedic understanding.