It is known from the Mahāparinibbāna Sutta of Dīghanikāya that the Buddha advised his Noble disciples to ascertain the Buddha’s teachings in four ways in case of the misinterpretation of the doctrine. The statement made soon after the Great Demise of the Buddha by an immoral monk named Subhadda who joined the Order in his old age and various difficulties faced by the disciples of the Sangha led to the gathering of five hundred Arahant Therās under the leadership of Mahākassapa patronized by king Ajātasatthu. It was held for seven months.
This gathering of Mahā Therās to recite the Buddha’s doctrine in its pristine purity was known as the First Buddhist Council or Pancasatikā. A complete description of this council is found in the Pancastikakkhadaka of Cullavaggapāli. The main objective of the First Buddhist council was to organize and canonize the teachings of the Buddha paving the way for the formation of Pitakas or Baskets. Only Dhamma and Vinaya were recited. Dhamma was classified into four Nikāyas forming Sutta Pitaka. Namely;
- Dīghanikāya ( long Discourses)
- Majjhimanikāya ( Middle length Discourses)
- Saṃyuttanikāya ( Kindred sayings)
- Anguttaranikāya ( Minor sayings)