While the linguistic leanings of the early Rashtrakutas (pre-8th century) has caused considerable debate, the history and language of the imperial Rashtrakutas of Manyakheta has been free of such confusion. It is clear from inscriptions, coinage and prolific contemporaneous literature that the court of these Rashtrakutas was multi-lingual, and used Sanskrit and Kannada as their administrative languages and encouraged literature in Sanskrit and Kannada. Rashtrakuta inscriptions outside Karnataka are mostly in Sanskrit However this period was the very end of the classical era of literary Sanskrit and Prakrit. As such, from the Kavirajamarga of the 9th century, it is known that Kannada was popular from Kaveri river up to the Godavari river, an area covering large territory in modern Maharashtra.