What were the nikaya schools?

Bright on Buddhism - Episode 121 - What were the nikaya schools? What did they believe? What happened to them?Resources: Baruah, Bibhuti (2000). Buddhist Sects and Sectarianism. Sarup & Sons. ISBN 978-81-7625-152-5.; Nakamura, Hajime (1987). Indian Buddhism: A Survey with Bibliographical Notes. Motilal Banarsidass. ISBN 978-81-208-0272-8.; Nattier, Jan (2003). A Few Good Men: The Bodhisattva Path According to the Inquiry of Ugra (Ugraparipṛcchā): a Study and Translation. University of Hawaii Press. ISBN 978-0-8248-2607-9.; Padma, Sree (2008). Buddhism in the Krishna River Valley of Andhra. SUNY Press. ISBN 978-0-7914-7814-1.; Ray, Reginald (2002). Indestructible Truth: The Living Spirituality of Tibetan Buddhism. Shambhala. ISBN 978-0-8348-2438-6.; Walser, Joseph (2012). Nagarjuna in Context: Mahayana Buddhism and Early Indian Culture. Columbia University Press. ISBN 978-0-231-50623-6.; Williams, Paul (2008). Mahayana Buddhism: The Doctrinal Foundations. Routledge. ISBN 978-1-134-25056-1.; Xing, Guang (2005). The Concept of the Buddha: Its Evolution from Early Buddhism to the Trikāya Theory. Psychology Press. ISBN 978-0-415-33344-3.https://www.gofundme.com/c/act/flood-relief#/⁠Do you have a question about Buddhism that you'd like us to discuss? Let us know by emailing us at [email protected]:Nick Bright: Script, Cover Art, Music, Voice of Hearer, Co-HostProven Paradox: Editing, mixing and mastering, social media, Voice of Hermit, Co-Host