The Buddhist Pâli Scriptures contain three different collections: the Sutta (relating to the doctrines), the Vinaya (relating to the discipline of the monks) and the Abhidhamma (relating generally to the same subjects as the suttas but dealing with them in a scholastic and technical manner). Scholars of Buddhistic religious history of modern times have failed as yet to fix any definite dates for the collection or composition of the different parts of the aforesaid canonical literature of the Buddhists. The suttas were however composed before the Abhidhamma and it is very probable that almost the whole of the canonical works were completed before 241 B.C., the date of the third council during the reign of King Asoka. The suttas mainly deal with the doctrine (Dhamma) of the Buddhistic faith whereas the Vinaya deals only with the regulations concerning the discipline of the monks. The subject of the Abhidhamma is mostly the same as that of the suttas, namely, the interpretation of the Dhamma. Buddhaghos@a in his introduction to _Atthasâlinî_, the commentary on the _Dhammasa@nga@ni_, says that the Abhidhamma is so called (_abhi_ and _dhamma_) because it describes the same Dhammas as are related in the suttas in a more intensified (_dhammâtireka_) and specialized (_dhammavisesatthena_) manner. The Abhidhammas do not give any new doctrines that are not in the suttas, but they deal somewhat elaborately with those that are already found in the suttas. Buddhagho@sa in distinguishing the special features of the suttas from the Abhidhammas says that the acquirement of the former leads one to attain meditation (_samâdhi_) whereas the latter leads one to attain wisdom (_paññâsampadam_). The force of this statement probably lies in this, that the dialogues of the suttas leave a chastening effect on the mind, the like of which is not to be found in the Abhidhammas, which busy themselves in enumerating the Buddhistic doctrines and defining them in a technical manner, which is more fitted to produce a reasoned 85 insight into the doctrines than directly to generate a craving for following the path of meditation for the extinction of sorrow. The Abhidhamma known as the _Kathâvatthu_ differs from the other Abhidhammas in this, that it attempts to reduce the views of the heterodox schools to absurdity. The discussions proceed in the form of questions and answers, and the answers of the opponents are often shown to be based on contradictory assumptions.