in their views regarding the ultimate origin of the Pali Canon, but generally believe that the Canon includes several strata of relatively early and late texts, but with little consensus regarding the relative dating of different sections of the Canon or which texts belong to which era. Authorship Authorship according to Theravadins Prayudh Payutto argues that the Pali Canon represents the teachings of the Buddha essentially unchanged apart from minor modifications. He argues that it also incorporates teachings that precede the Buddha, and that the later teachings were memorized by the Buddha's followers while he was still alive. His thesis is based on study of the processes of the first great council, and the methods for memorization used by the monks, which started during the Buddha's lifetime. It's also based on the capability of a few monks, to this day, to memorize the entire canon. Bhikkhu Sujato and Bhikkhu Brahmali argue that it is likely that much of the Pali Canon dates back to the time period of the Buddha. They base this on many lines of evidence including the technology described in the canon (apart from the obviously later texts), which matches the technology of his day which was in rapid development, that it doesn't include back written prophecies of the great Buddhist ruler King Ashoka (which Mahayana texts often do) suggesting that it predates his time, that in its descriptions of the political geography it presents India at the time of Buddha, which changed soon after his death, that it has no mention of places in South India, which would have been well known to Indians not long after Buddha's death and various other lines of evidence dating the material back to his time. Authorship according to academic scholars The views of scholars concerning the authorship of the Pali Canon can be grouped into three categories: Attribution to the Buddha himself and his early followers Attribution to the period of pre-sectarian Buddhism Agnosticism Scholars have both supported and opposed the various existing views. Views concerning authorship of the Buddha himself Several scholars of early Buddhism argue that the nucleus of the Buddhist teachings in the Pali Canon may derive from Gautama Buddha himself, but that part of it also was developed after the Buddha by his early followers. Richard Gombrich says that the main preachings of the Buddha (as in the Vinaya and Sutta Pitaka) are coherent and