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The early Buddhist schools are those schools into which, according to most scholars, the Buddhist monastic saṅgha initially split, due originally to differences in vinaya, and later also due to doctrinal differences and geographical separation of groups of monks.

The original saṅgha split into the first early schools (commonly believed to be the Sthaviravādins and the Mahāsaṃghikas) a significant number of years after the death of Gautama Buddha; according to scholar Collett Cox "most scholars would agree that even though the roots of the earliest recognized groups predate Aśoka, their actual separation did not occur until after his death."[1] Later, these first early schools split into further divisions such as the Sarvāstivādins and the Dharmaguptakas, and ended up numbering, traditionally, about 18 or 20 schools. In fact, there are several overlapping lists of 18 schools preserved in the Buddhist tradition, totalling about twice as many, though some may be alternative names. It is thought likely that the number is merely conventional.

The schools sometimes split over ideological differences concerning the "real" meaning of teachings in the Suttapiṭaka, and sometimes over disagreement concerning the proper observance of vinaya. These ideologies became embedded in large works such as the Abhidhammas and commentaries. Comparison of existing versions of the Suttapiṭaka of various sects shows evidence that ideologies from the Abhidhammas sometimes found their way back into the Suttapiṭakas, to support the statements made in those Abhidhammas.

Developments in history

The first council

Three months after the passing of Buddha, according to scriptures, the first council was held at Rajagaha by some of his disciples who had attained arahantship (enlightenment). At this point, Theravāda tradition maintains that no conflict about what the Buddha taught occurred, the teachings were divided into various parts and each was assigned to an elder and his pupils to commit to memory.

The accounts of the council in the scriptures of the schools differ as to what was actually recited there. Venerable Purāṇa is recorded as having said: "Your reverences, well chanted by the elders are the Dhamma and Vinaya, but in that way that I heard it in the Lord's presence, that I received it in his presence, in that same way will I bear it in mind." [Vinaya-pitaka: Cullavagga XI:1:11].

Some scholars deny that the first council actually took place.[2][3]

The second council

The second council did not cause a split in the saṅgha, as is sometimes claimed. It was strictly about the misbehavior of a group of monks, who changed their behaviors after the council.

Period between the second and third councils

Most scholars believe that the first split occurred in the intervening period between the second and third councils, and was probably about monastic discipline. Generally, it is believed that the first split was between the Sthaviravāda and the Mahāsaṃghika. However, after this initial division, more were to follow.

Third council under Aśoka

Tradition largely holds that Buddhism split into 18 schools, but different sources give different lists of them, and scholars conclude that the number is merely conventional.

Theravādin sources state that, in the 3rd century BCE, a third council was convened under the patronage of Emperor Aśoka, but no mention of this council is found in other sources.[4] Some scholars argue that there are certain implausible features of the Theravādin account which imply that the third council was ahistorical. The remainder consider it a purely Theravāda/Vibhajjavāda council. It is generally accepted, however, that one or several disputes did occur during Aśoka's reign, involving both doctrinal and disciplinary (vinaya) matters, although these may have been too informal to be called a "council". The Sthavira school had, by the time of King Aśoka, divided into three sub-schools, doctrinally speaking, but these did not become separate monastic orders until later.

According to the Theravādin account, this council was convened primarily for the purpose of establishing an official orthodoxy. At the council, small groups raised questions about the specifics of the vinaya and the interpretation of doctrine. The chairman of the council, Moggaliputta Tissa, compiled a book, the Kathavatthu, which was meant to refute these arguments. The council sided with Moggaliputta and his version of Buddhism as orthodox; it was then adopted by Emperor Aśoka as his empire's official religion. This school of thought was termed "Vibhajjavāda" (Pāli), literally "thesis of [those who make] a distinction". The distinction involved was as to the existence of phenomena (dhammas) in the past, future and present. The version of the scriptures that had been established at the third council, including the vinaya, sutta and the abhidhamma (collectively known as "tripiṭaka"), was taken to Sri Lanka by Emperor Aśoka's son, the Venerable Mahinda. There it was eventually committed to writing in the Pāli language. The Pāli canon remains the most complete set of surviving Nikāya scriptures, although the greater part of the Sarvāstivādin canon also survives in Chinese translation, some parts exist in Tibetan translations, and some fragments exist in Sanskrit manuscripts, while parts of various canons (sometimes unidentified), exist in Chinese and fragments in other Indian dialects.

Developments during and after the third council

Whatever might be the truth behind the Theravādin account, it was around the time of Aśoka that further divisions began to occur within the Buddhist movement and a number of additional schools emerged, including the Sarvāstivāda and the Sammitīya. All of these early schools of Nikāyan Buddhism eventually came to be known collectively as "the eighteen schools" in later sources. Unfortunately, with the exception of the Theravāda, none of these early schools survived beyond the late medieval period by which time several were already long extinct, although a considerable amount of the canonical literature of some of these schools has survived, mainly in Chinese translation. Moreover, the origins of specifically Mahāyāna doctrines may be discerned in the teachings of some of these early schools, in particular in the Mahāsāṅghika and the Sarvāstivāda.

During and after the third council, elements of the Sthavira group called themselves "Vibhajjavādins". One part of this group was transmitted to Sri Lanka and to certain areas of southern India, such as Vanavasi in the south-west and the Kañci region in the south-east. This group later ceased to refer to themselves specifically as "Vibhajjavādins", but reverted to calling themselves "Theriyas", after the earlier Theras or "Sthaviras". Still later, at some point prior to the Dipavamsa (4th century), the Pāli name "Theravāda" was adopted and has remained in use ever since for this group.

The Pudgalavādins were also known as "Vatsiputrīyas" after their putative founder. Later this group became known as the "Sammitīya" school, after one of its subdivisions. It died out around the 9th or 10th century CE. Nevertheless, during most of the early medieval period, the Sammitīya school was numerically the largest Buddhist group in India, with more followers than all the other schools combined. The Sarvāstivādin school was most prominent in the north-west of India and provided some of the doctrines that would later be adopted by the Mahāyāna. Another group linked to Sarvāstivāda was the Sautrāntika school, which only recognized the authority of the sutras and rejected the abhidharma transmitted and taught by the Vaibhāṣika wing of Sarvāstivāda. Based on textual considerations, it has been suggested that the Sautrāntikas were actually adherents of Mūlasarvāstivāda. The relation between Sarvāstivāda and Mūlasarvāstivāda, however, is unclear.

Between the 1st century BCE and the 1st century CE, the terms "Mahāyāna" and "Hīnayāna" were first used in writing, in, for example, the Lotus Sutra.

And Mahāyāna members

Although the various early schools of Buddhism are sometimes loosely classified as "Hīnayāna" in modern times, this is not necessarily accurate. According to Jan Nattier, Mahāyāna never referred to a separate sect of Buddhism (Skt. nikāya), but rather to the set of ideals and doctrines for bodhisattvas.[5] Paul Williams has also noted that the Mahāyāna never had nor ever attempted to have a separate vinaya or ordination lineage from the early Buddhist schools, and therefore each bhikṣu or bhikṣuṇī adhering to the Mahāyāna formally belonged to an early school. This continues today with the Dharmaguptaka Vinaya in East Asia, and the Mūlasarvāstivāda Vinaya in Tibetan Buddhism. Therefore, Mahāyāna was never a separate rival sect of the early schools.[6] From Chinese monks visiting India, we now know that both Mahāyāna and non-Mahāyāna monks in India often lived in the same monasteries side by side.[7] Additionally, Isabella Onians notes that Mahāyāna works rarely used the term Hīnayāna, typically using the term Śrāvakayāna instead.[8]

The Chinese Buddhist monk and pilgrim Yijing wrote about relationship between the various "vehicles" and the early Buddhist schools in India. He wrote, "There exist in the West numerous subdivisions of the schools which have different origins, but there are only four principal schools of continuous tradition." These schools are namely the Mahāsaṃghika Nikāya, Sthavira Nikāya, Mūlasarvāstivāda Nikāya, and Saṃmitīya Nikāya.[9] Explaining their doctrinal affiliations, he then writes, "Which of the four schools should be grouped with the Mahāyāna or with the Hīnayāna is not determined." That is to say, there was no simple correspondence between a Buddhist school and whether its members learn "Hīnayāna" or "Mahāyāna" teachings.[10]

The Chinese pilgrims

During the first millennium, monks from China such as Faxian, Xuanzang, and Yijing made pilgrimages to India and wrote accounts of their travels when they returned home. These Chinese travel records constitute extremely valuable sources of information concerning the state of Buddhism in India during the early medieval period.

By the time the Chinese pilgrims Xuanzang and Yijing visited India, there were five early Buddhist schools that they mentioned far more frequently than others. They commented that the Sarvāstivāda/Mūlasarvāstivāda, Mahāsaṃghika, and Saṃmitīya were the principal early Buddhist schools still extant in India,[11] along with the Theravāda. The latter by then had largely emigrated to Sri Lanka but was also still prominent in Kanchi. The Dharmaguptakas, who had been so influential in the early spread of Buddhism to Central Asia and China, had almost completely disappeared.

The eighteen schools

It is commonly said that there were eighteen schools of Buddhism in this period. What this actually means is more subtle. First, although the word "school" is used, there was not yet an institutional split in the saṅgha. The Chinese traveler Xuanzang observed even when the Mahāyāna were beginning to emerge from this era that monks of different schools would live side by side in dormitories and attend the same lectures. Only the books that they read were different.[12] Secondly, no historical source can agree what the names of these "eighteen schools" were. The origin of this saying is therefore unclear.

What follows are the lists given by each of the different sources.

According to the Dipavamsa

This list was taken from the Sri Lankan chronicles, Dipavamsa and Mahavamsa.

  • Sthaviravāda/Vibhajjavāda/Theravāda
    • Mahīśāsaka - First schism
      • Sarvāstivāda - Third schism
        • Kāśyapīya - Forth schism
          • Sankrantika - Fifth schism
            • Sautrāntika - Sixth Schism
      • Dharmaguptaka - Third schism
    • Vatsīputrīya - First schism
      • Dharmottarīya - Second schism
      • Bhadrayānīya - Second schism
      • Sannāgarika - Second schism
      • Saṃmitīya - Second schism
  • Mahāsaṃghika
    • Gokulika - First schism
      • Prajñaptivāda - Second schism
      • Bahuśrutīya - Second schism
    • Ekavyahārikas - First schism
    • Caitika - Third schism; According to Dipavamsa, but in the Mahavamsa it is said to have arisen from the Pannati and Bahussutaka)

In addition, the Dipavamsa lists the following six schools without identifying the schools from which they arose:

  • Hemavatika (Sanskrit: Haimavata)
  • Rajagiriya
  • Siddhatthaka
  • Pubbaseliya
  • Aparaseliya (Sanskrit: Aparaśaila)
  • Apararajagirika

According to Vasumitra

This list was taken from Samayabhedo Paracana Cakra, the author of which was Vasumitra a Sarvāstivādin monk.

  • Sthaviravāda
    • Haimavata - First schism; referred to by Sarvāstivādins as "the original Sthavira School", but this school was only influential in the north of India.
    • Sarvāstivāda - First schism
      • Vatsīputrīya - Second schism
        • Dharmottarīya - Third schism
        • Bhadrayānīya - Third schism
        • Saṃmitīya - Third schism
        • Sannāgarika - Third schism
      • Mahīśāsaka- Forth schism
        • Dharmaguptaka - Fifth schism
      • Kāśyapīya - Sixth schism
      • Sautrāntika - Seventh Schism
  • Mahāsaṃghika
    • Ekavyahārikas - First schism
    • Lokottaravāda - First schism
    • Gokulika - First schism
    • Bahuśrutīya - Second schism
    • Prajñaptivāda - Third schism
    • Caitika - Forth schism
    • Apara Śaila - Fourth schism
    • Uttara Śaila - Fourth schism

According to Vinitadeva

Vinitadeva (c. 645-715) was a Mūlasarvāstivādin monk.

  • Sthaviravāda
    • Jetavaniya
    • Abhayagirivasin
    • Mahaviharavasin
  • Sammatiya
    • Kaurukullaka
    • Avantaka
    • Vatsīputrīya
  • Sarvastivadin
    • Mūlasarvāstivādin
    • Kasyapiya
    • Mahisasaka
    • Dharmaguptaka
    • Bahuśrutīya
    • Tamrasatiya
    • Vibhajyavadin
  • Mahāsaṃghika
    • Purvasaila
    • Aparasaila
    • Haimavata
    • Lottaravadin
    • Prajñaptivāda

According to the Sariputrapariprccha

The Sariputrapariprccha is a Mahāsaṃghikan history.

  • Sthaviravāda
    • Sarvāstivāda
      • Mahisasaka
      • Dharmaguptaka
      • Suvarsa
    • Vatsīputrīya
      • Dharmottarika
      • Bhadrayaniya
      • Sammatiya
      • Sannagarika
    • Kāśyapīya
    • Sutravadin
    • Samkrantika
  • Mahāsaṃghika
    • Vyavahara
    • Lokottaravāda
    • Gokulika
    • Bahuśrutīya
    • Prajñaptivāda
    • Mahadeva
    • Caitika
    • Uttarashaila

Twenty schools according to Mahayana scriptures in Chinese

Sthaviravāda (上座部) was split into 11 sects. These were: Sarvāstivādin (説一切有部), Haimavata (雪山部), Vatsīputrīya (犢子部), Dharmottara (法上部), Bhadrayānīya (賢冑部), Sammitīya (正量部), Channagirika (密林山部), Mahisasaka (化地部), Dharmaguptaka (法蔵部), Kāśyapīya (飲光部), Sautrāntika (経量部).

  • Sthaviravāda, later Haimavata
    • Sarvāstivādin
      • Vatsīputrīya
        • Dharmottara
        • Bhadrayānīya
        • Sammitīya
        • Channagirika
      • Mahisasaka
        • Dharmaguptaka
      • Kāśyapīya
      • Sautrāntika

Mahāsaṃghika (大衆部) was split into 9 sects. There were: Ekavyahārika (一説部), Lokottaravādin (説出世部), Gokulika (鶏胤部), Bahuśrutīya (多聞部), Prajñaptivāda (説仮部), Caitika (制多山部), Aparaśaila (西山住部), and Uttaraśaila (北山住部).

  • Mahāsaṃghika
    • Ekavyahārika
    • Caitika
    • Lokottaravādin
    • Aparaśaila
    • Gokulika
    • Uttaraśaila
    • Bahuśrutīya
    • Prajñaptivāda

Hypothetical combined list

  • Sthaviravāda
    • Pudgalavāda ('Personalist') (c. 280 BCE)
      • Vatsīputrīya (during Aśoka) later name: Saṃmitīya
      • Dharmottarīya
      • Bhadrayānīya
      • Sannāgarika
    • Vibhajjavāda (prior to 240 BCE; during Aśoka)
      • Theravāda (c. 240 BCE)
      • Mahīśāsaka (after 232 BCE)
        • Dharmaguptaka (after 232 BCE)
    • Sarvāstivāda (c. 237 BCE)
      • Kāśyapīya (after 232 BCE)
      • Sautrāntika (between 50 BCE and c. 100 CE)
      • Mūlasarvāstivāda (3rd and 4th centuries)
      • Vaibhāṣika
  • Mahāsaṃghika
    • Ekavyahārikas (during Aśoka)
      • Lokottaravāda
    • Gokulika (during Aśoka)
      • Bahuśrutīya (late third century BCE)
      • Prajñaptivāda (late third century BCE)
    • Caitika (mid-first century BCE)
      • Apara Śaila
      • Uttara Śaila


The Theravāda School of Sri Lanka, Burma, and Thailand is descended from the Sthaviravādin and (more specifically) the Vibhajjavāda School. It underwent two more changes of name. In the Indian accounts it is sometimes called the "Tāmraparnīya" (translation: Sri Lankan lineage), but there is no indication that this referred to any change in doctrine or scripture, while it is very obvious that it refers to geographical location. At some point prior to the Dipavamsa (4th century) the name was changed to "Theravāda", probably to reemphasize the relationship to the original "Sthaviravāda", which is the Sanskrit version of the Pāli term "Theravāda".

The Theravāda school is the only remaining school which is exclusively aligned with the philosophic outlook of the early schools. However, significant variation is found between the various Theravādin communities, usually concerning the strictness of practice of vinaya and the attitude one has towards abhidhamma. Both these, however, are aspects of the Vibhajjavādin recension of the Tipiṭaka, and the variation between current Theravāda groups is mainly a reflection of accent or emphasis, not content of the Tipiṭaka or the commentaries. The Tipiṭaka of the Theravāda and the main body of its commentaries are believed to come from (or be heavily influenced by) the Sthaviravādins and especially the subsequent Vibhajjavādins.

Timeline: Development and propagation of Buddhist traditions (ca. 450 BCE – ca. 1300 CE)

  450 BCE 250 BCE 100 CE 500 CE 700 CE 800 CE 1200 CE







Early Buddhist schools Mahayana Vajrayana






Sri Lanka &
Southeast Asia

  Theravada Buddhism






Central Asia




Tibetan Buddhism


Silk Road Buddhism


East Asia

  Ch'an, Tendai, Pure Land, Zen, Nichiren




  450 BCE 250 BCE 100 CE 500 CE 700 CE 800 CE 1200 CE
  Legend:   = Theravada tradition   = Mahayana traditions   = Vajrayana traditions

The legacies of other early schools are preserved in various Mahāyāna traditions. All of the schools of Tibetan Buddhism use a Mūlasarvāstivāda vinaya and study the Sarvāstivādin abhidharma, supplemented with Mahāyāna and Vajrayāna texts. Chinese schools use the vinaya from the Dharmagupta school, and have versions of those of other schools also. Fragments of the canon of texts from these schools also survive such as the Mahāvastu of the Mahāsānghika School.

See also


  1. Disputed Dharmas: Early Buddhist Theories on Existence. by Collett Cox. The Institute for Buddhist Studies. Tokyo: 1995. ISBN 4-906267-36-X pg 23
  2. Hoiberg, Dale; Indu Ramchandani. "Early Buddhist schools" entry in Students' Britannica India, p. 264. Popular Prakashan, 2000. ISBN 0-85229-760-2.
  3. Williams, Mahayana Buddhism, Routledge, 1989, page 6
  4. Macmillan Encyclopedia of Buddhism
  5. Nattier, Jan (2003), A few good men: the Bodhisattva path according to the Inquiry of Ugra: p. 193-194
  6. Williams, Paul (2008) Mahayana Buddhism: The Doctrinal Foundations: p. 4-5
  7. Williams, Paul (2000) Buddhist Thought: A Complete Introduction to the Indian Tradition: p. 97
  8. Isabelle Onians, "Tantric Buddhist Apologetics, or Antinomianism as a Norm," D.Phil. dissertation, Oxford, Trinity Term 2001 pg 72
  9. Walser, Joseph (2005) Nagarjuna in Context: Mahayana Buddhism and Early Indian Culture: pp. 41
  10. Walser, Joseph (2005) Nagarjuna in Context: Mahayana Buddhism and Early Indian Culture: pp. 41-42
  11. Encyclopedia of Buddhism. edited by Edward Irons. Facts on File: 2008. ISBN 978-0-8160-5459-6 pg 419
  12. Elizabeth Cook. Light of Liberation: A History of Buddhism in India. Dharma Publishing, 1992. p. 299

Further reading

External links