also a number of texts that are believed to have been composed in Pali in Sri Lanka, Thailand and Burma but were not widely circulated. This regional Pali literature is currently relatively little known, particularly in the Thai tradition, with many manuscripts never catalogued or published. Relationship to other languages Paiśācī is a largely unattested literary language of classical India that is mentioned in Prakrit and Sanskrit grammars of antiquity. It is found grouped with the Prakrit languages, with which it shares some linguistic similarities, but was not considered a spoken language by the early grammarians because it was understood to have been purely a literary language. In works of Sanskrit poetics such as Daṇḍin's Kavyadarsha, it is also known by the name of , an epithet which can be interpreted as 'dead language' (i.e., with no surviving speakers), or means past and means language i.e. 'a language spoken in the past'. Evidence which lends support to this interpretation is that literature in Paiśācī is fragmentary and extremely rare but may once have been common. The 13th-century Tibetan historian Buton Rinchen Drub wrote that the early Buddhist schools were separated by choice of sacred language: the Mahāsāṃghikas used Prākrit, the Sarvāstivādins used Sanskrit, the Sthaviravādins used Paiśācī, and the Saṃmitīya used Apabhraṃśa. This observation has led some scholars to theorize connections between Pali and Paiśācī; Sten Konow concluded that it may have been an Indo-Aryan language spoken by Dravidian people in South India, and Alfred Master noted a number of similarities between surviving fragments and Pali morphology. Ardha-Magadhi Prakrit Ardhamagadhi Prakrit was a Middle Indo-Aryan language and a Dramatic Prakrit thought to have been spoken in modern-day Bihar & Eastern Uttar Pradesh and used in some early Buddhist and Jain drama. It was originally thought to be a predecessor of the vernacular Magadhi Prakrit, hence the name (literally "half-Magadhi"). Ardhamāgadhī was prominently used by Jain scholars and is preserved in the Jain Agamas. Ardhamagadhi Prakrit differs from later Magadhi Prakrit in similar ways to Pali, and was often believed to be connected with Pali on the basis of the belief that Pali recorded the speech of the Buddha in an early Magadhi dialect. Magadhi Prakrit Magadhi Prakrit was a Middle Indic language spoken in present-day Bihar, and eastern Uttar Pradesh. Its use later expanded southeast to include some regions of modern-day Bengal, Odisha, and Assam, and it was used in