Pali CanonThe Pāli Canon is the standard collection of scriptures in the Theravada Buddhist tradition, as preserved in the Pāli language. It is the most complete extant early Buddhist canon. It derives mainly from the Tamrashatiya school. During the First Buddhist Council, three months after the parinibbana of Gautama Buddha in Rajgir, Ananda recited the Sutta Pitaka, and Upali recited the Vinaya Pitaka. The Arhats present accepted the recitations, and henceforth, the teachings were preserved orally by the Sangha.
MahāsāṃghikaThe Mahāsāṃghika (Brahmi: 𑀫𑀳𑀸𑀲𑀸𑀁𑀖𑀺𑀓, "of the Great Sangha", ) was a major division (nikāya) of the early Buddhist schools in India. They were one of the two original communities that emerged from the first schism of the original pre-sectarian Buddhist tradition (the other being the Sthavira nikaya). This schism is traditionally held to have occurred after the Second Buddhist council, which occurred at some point during or after the reign of Ashoka. The Mahāsāṃghika nikāya developed into numerous sects which spread throughout ancient India.
SarvastivadaThe Sarvāstivāda (𑀲𑀩𑁆𑀩𑀢𑁆𑀣𑀺𑀯𑀸𑀤, श्र्वास्तिवाद; ) was one of the early Buddhist schools established around the reign of Ashoka (third century BCE). It was particularly known as an Abhidharma tradition, with a unique set of seven Abhidharma works. The Sarvāstivādins were one of the most influential Buddhist monastic groups, flourishing throughout North India (especially Kashmir) and Central Asia until the seventh century.
DharmaguptakaThe Dharmaguptaka (Sanskrit: धर्मगुप्तक; ) are one of the eighteen or twenty early Buddhist schools, depending on the source. They are said to have originated from another sect, the Mahīśāsakas. The Dharmaguptakas had a prominent role in early Central Asian and Chinese Buddhism, and their Prātimokṣa (monastic rules for bhikṣus and bhikṣuṇīs) are still in effect in East Asian countries to this day, including China, Vietnam, Korea, and Japan as well as the Philippines.