After the Buddha's death, Buddhist councils were convened over the period of time to recite approved texts of scriptures and to settle doctrinal and disciplinary disputes.
First Buddhist Council
Soon after the Buddha’s death in the fifth century BC the first Buddhist Council (sangiti) was held at Sattapanni cave near the Magadhan capital of Rajagriha (modern Rajgir, Bihar state of India). It was convened to compile the dhamma (religious doctrines) and the vinaya (monastic code).Second Buddhist Council
A century later around 383 B.C. Vaishali in Bihar became the venue for the second Buddhist council which was convened to settle a serious dispute over the 'Ten Points’. This is a reference to claims of some monks breaking ten rules. It is at Vaishali council where schism raised its head. Since either of the parties did not come to terms with each other, the council ended in a permanent schism of the Buddhist church into orthodox Sthaviravadins , or “Believers in the Teaching of the Elders” and Mahasanghikas or “Members of the Great Community”.
Third Buddhist Council
The third council was held at Patliputra (modern Patna, capital of Bihar ) under the patronage of Great Mauryan Emperor Asoka, 236 years after the death of Buddha. Presided over by the scholar monk Moggaliputra Tissa, the council was participated in by one thousand monks. The third Buddhist Council resulted in the expulsion of several heretics.
This council achieved a number of other important things. Moggaliputta Tissa, in order to keep heresies at bay and ensure the Dhamma was kept pure, composed a book called the Kathavatthu in which he disproved the wrong opinions and theories of a number of sects.
Fourth Buddhist Council
The fourth Council was held during the reign of Kanishka of Kushan Dynasty in Kashmir under the leadership of elder Vasumitra and the great scholar Asvaghosha. Here at this council Savastivadin doctrines were codified in a summary, the Mahavibhasa ("Great Exegesis"). The convening of this council led to the division into two broad sects, namely the Mahayana (great Vehicle ) and the Hinayana (lesser Vehicle). According to Buddhist tradition, another fourth Buddhist council was also held at Tambapanni at Alu Vihara in Sri Lanka in 29 B.C. under the patronage of King Vattagamani Abhaya (29–17 bc).