The name here used by the chronicler for Pali is "the Magadhi tongue," by which expression is meant, not exactly the language spoken in Magadha, but the language in use at the court of Asoka, king of Kosala and Magadha.
In later times it was included in the powerful Hindu kingdom of Magadha or Behar, and in the 7th century A.D.
Bali, the ancient language of the kingdom of Magadha, in which the sacred writings of Buddhism were made, was largely instrumental in forming all the languages of Further India, including Siamese - a fact which accounts for the numerous connecting links between the Mon, Burmese and Siamese languages of the present time, though these are of quite separate origin.
(c. 535), after whom it passed "by an obscure transition" into a dynasty of eleven Gupta princes, known as "the later Guptas of Magadha," who seem for the most part to have been merely local rulers of Magadha.
About the middle of the;century Magadha passed under the sway of the Pal kings of Bengal.