This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Charles Prebish's review of scholarship on the Buddhist councils makes a point worth carrying into every council entry regardless of tradition: the very word council, borrowed from Christian ecclesiastical history, can mislead when applied elsewhere, since the assemblies Buddhist tradition remembers as councils, convened after the Buddha's death to recite and settle the content of his teaching, worked by a different method and answered to a different kind of authority than a bishops' synod did.
Prebish's own survey shows scholars disagreeing about how many of the traditionally counted Buddhist councils actually happened as later tradition describes them, since the earliest accounts were themselves written down generations after the events they describe, and a council entry on Buddhist material records that documentary gap honestly rather than repeating a traditional count as settled history.
That same discipline generalizes across the type. A council or synod entry describes each tradition's own convening authority, its own method for reaching and recording a decision, and its own standard for what counts as binding, rather than assuming every tradition's councils worked the way a single, better known example did.