Since the Mahaparinirvana of the historical Buddha, Siddhartha Gautama, Buddhist monastic communities, the "sangha", have periodically convened for doctrinal and disciplinary reasons and to revise and correct the contents of the Buddhist canons. Referred to as Buddhist "councils" (Pāli and Sanskrit: saṅgīti, literally meaning "reciting together" or "joint rehearsal"), the famous First Buddhist Council is recorded in Buddhist texts as being held one year after the Buddha's passing, when Ananda recited all of the spoken sutras, which were recorded in Rajagriha. The two next major Councils were held more than 100 years later.

The details of the later councils are debated by modern Buddhist studies. Various sources belonging to different Buddhist schools may contain different accounts of these events.

All six of the surviving Vinaya sources of various early Buddhist schools contain accounts, in whole or in part, of the first and second councils. The story of the First Council seems to be a continuation of the story of the Buddha's final days and death told in the Mahaparinibbana Sutta and its equivalents in the Agamas. Based on correlations and continuity between these two texts, Louis Finot concluded that they had originated from a single narrative that was later split between the Sutta Pitaka and Vinaya Pitaka. In most schools, the account of the First Council is located at the end of the Skandhaka section of the Vinaya but before any appendices.

The first Buddhist council is traditionally said to have been held just after Buddha's final nirvana, and presided over by Mahākāśyapa, one of his most senior disciples, at a cave near Rājagṛha (today's Rajgir) with the support of king Ajatashatru. Its objective was to preserve the Buddha's sayings (suttas) and the monastic discipline or rules (Vinaya). The Suttas were recited by Ananda, and the Vinaya was recited by Upali. Even though the Buddha had said that the Sangha could abolish the minor rules after his passing, the council made the unanimous decision to keep all the rules intact. According to Charles Prebish, almost all scholars have questioned the historicity of this first council.

Numerous Vinayas also depict various disagreements in the first council. Various monks disagreed on whether to keep or get rid of some of the minor rules (since the Buddha had told Ananda that this may be done). Some monks even argued all the minor rules should be abolished. Also, numerous early sources state that Mahakasyapa criticized Ananda in various ways. Analayo quotes one passage from a Chinese parallel to the Mahāparinibbāna-sutta (T 1428 at T XXII 966b18), in which Mahākassapa says: "Ānanda is [like] a lay person. I am afraid that, being with covetousness in his mind, he will not recite the discourses completely." Analayo writes there may have been "actual conflict between two contending factions in the monastic community after the Buddha's decease, with the more ascetically inclined faction emerging as the winning party in the accounts of the first saṅgīti".

According to some traditional accounts, following the Buddha's death, 499 of the Buddha's top arhats were chosen to attend the council. Ananda, then a sotapanna, trained himself until the dawn of day of the council, at which point he attained arahatship and was allowed to join the council.

Regarding the Abhidhamma Pitaka, the third major division of the Tipitaka, modern academic scholarship holds that it was likely composed at a later date because of its contents and differences in language and style. According to Theravada tradition, the Abhidhamma Pitaka, and the ancient Atthakathā (commentary) were also included at the first Buddhist council in the Sutta category, but its literature is different from Sutta because the Abhidhamma Pitaka was authored by Sāriputta.

The various Vinayas also recount another curious event during this time. The Cullavagga mentions there was an arhat named Purāṇa who stated that he and his followers preferred to remember the Buddha's teachings in the manner he had heard it and so did not rely on the textual collections of the council. This figure is also found in the Aśokāvadāna and the Tibetan Dulvā Vinaya, which depict Purāṇa and another monk, Gavampati which were not present at the council and who worry about what will happen to the Dharma after the death of the Buddha. This account is described in the Chinese versions of the Dharmagupta and Mahīsāsaka Vinayas and in the Vinayamātrika Sūtra. Gavampati is said to have also maintained a set of eight rules regarding food which are retained by the Mahīsāsaka Vinaya.