Explanation:

The Tripi?aka was composed between about 550 BCE and about the start of the common era, likely written down for the first time in the 1st century BCE. The Dipavamsa states that during the reign of Valagamba of Anuradhapura (29–17 BCE) the monks who had previously remembered the Tripi?aka and its commentary orally now wrote them down in books, because of the threat posed by famine and war. The Mahavamsa also refers briefly to the writing down of the canon and the commentaries at this time. Each Buddhist sub-tradition had its own Tripi?aka for its monasteries, written by its sangha, each set consisting of 32 books, in three parts or baskets of teachings: Vinaya Pi?aka (“Basket of Discipline”), Sutra Pi?aka (“Basket of Discourse”), and Abhidharma Pi?aka (“Basket of Special [or Further] Doctrine”).