First of all, we must keep in mind that 'Ramayana' is not a single text

Though the composition of the Ramayana is not correctly stated even today, according to the scholars, about three thousand years ago, about three thousand years before the year of conception, Ramayana was adopted by adopting Ramchandra of Ahranjita Imphaku Rajbanya Khatbebeer Ramchandra. So many believe Ramchandra is mythological and historic.