B.c.

First Buddhist Council: 400 BCHeld soon after the mahaparinirvana of the Buddha, around 400 BC under the patronage of king Ajatshatru with the monk Mahakasyapa presiding, at Rajgriha, in the Sattapani Cave.The idea was to preserve Buddha’s teachings (Sutta) and rules for disciples (Vinaya). Ananda, one of the great disciples of Buddha recited Suttas and Upali, another disciple recited Vinaya. Abhidhamma Pitaka was also included.Second Buddhist Council : 383 BCIt was held in 383 BC. This idea of this council was to settle a dispute on Vinaya Pitaka, the code of discipline. The dispute was on 10 Points such as storing salt in horn, eating after midday, eating once and going to villages for alms, eating sour milk after one’s meal etc. It was not settles and Buddhism sects appeared for the first time. The subgroups were Sthaviravada, Mahasanghika and Sarvastivada. It was held at Vaishali under the patronage of King Kalasoka and the presidency of Sabakami.Sthaviravada followed the teachings of the elders and Mahasanghika became extinct later. Sthaviravada later continued till 3rd Buddhist council.Third Buddhist Council: 250 BCThird Buddhist council was held in 250 BC at Pataliputra under the patronage of King Asoka and under the presidency of Moggaliputta Tissa.The teachings of Buddha which were under two baskets were now classified in 3 baskets as Abhidhamma Pitaka was established in this council, and they were known as “Tripitaka”. It also tried to settle all the disputes of Vinaya Pitaka.Fourth Buddhist Council: 72ADThe Fourth Buddhist Council was held at Kundalvana, Kashmir in 72 AD under the patronage of Kushan king Kanishka and the president of this council was Vasumitra, with Aśvaghosa as his deputy. This council distinctly divided the Buddhism into 2 sects Mahayan & Hinayan.