section_path: Vedic schools or recensions
section_name: Vedic schools or recensions
paragraph_text: Vedic schools or recensions
  
  The four Vedas were transmitted in various śākhā s (branches, schools). Each school likely represented an ancient community of a particular area, or kingdom. Each school followed its own canon. Multiple recensions (revisions) are known for each of the Vedas. Thus, states Witzel as well as Renou, in the 2nd millennium BCE, there was likely no canon of one broadly accepted Vedic texts, no Vedic “Scripture”, but only a canon of various texts accepted by each school. Some of these texts have survived, most lost or yet to be found. Rigveda that survives in modern times, for example, is in only one extremely well preserved school of Śåkalya, from a region called Videha, in modern north Bihar, south of Nepal. The Vedic canon in its entirety consists of texts from all the various Vedic schools taken together.
  
  There were Vedic schools that believed in polytheism in which numerous gods had different natural functions, henotheistic beliefs where only one god was worshipped but others were thought to exist, monotheistic beliefs in a single god, agnosticism, and monistic beliefs where "there is an absolute reality that goes beyond the gods and that includes or transcends everything that exists." Indra, Agni, and Yama were popular subjects of worship by polytheist organizations.
  
  Each of the four Vedas were shared by the numerous schools, but revised, interpolated and adapted locally, in and after the Vedic period, giving rise to various recensions of the text. Some texts were revised into the modern era, raising significant debate on parts of the text which are believed to have been corrupted at a later date. The Vedas each have an Index or Anukramani, the principal work of this kind being the general Index or Sarvānukramaṇī.
  
  Prodigious energy was expended by ancient Indian culture in ensuring that these texts were transmitted from generation to generation with inordinate fidelity. For example, memorization of the sacred Vedas included up to eleven forms of recitation of the same text. The texts were subsequently "proof-read" by comparing the different recited versions. Forms of recitation included the jaṭā-pāṭha (literally "mesh recitation") in which every two adjacent words in the text were first recited in their original order, then repeated in the reverse order, and finally repeated in the original order. That these methods have been effective, is attested to by the preservation of the most ancient Indian religious text, the Rigveda, as redacted into a single text during the Brahmana period, without any variant readings within that school.
  
  The Vedas were orally transmitted by memorization, and were written down only after 500 BCE, All printed editions of the Vedas that survive in the modern times are likely the version existing in about the 16th century CE.