Hindu texts to an author, as a derivative work they are considered less authoritative than "Sruti" in Hinduism. The Smrti literature is a vast corpus of diverse texts, and includes but is not limited to Vedāngas, the Hindu epics, the Sutras and Shastras, the texts of Hindu philosophies, the Puranas, the Kāvya or poetical literature, the "Bhasyas", and numerous "Nibandhas" (digests) covering politics, ethics, culture, arts and society. Many ancient and medieval Hindu texts were composed in Sanskrit, many others in regional Indian languages. In modern times, most ancient texts have been translated into other Indian languages and some in Western languages.
Vedas "proof-read" by comparing the different recited versions. Forms of recitation included the "" (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 testified 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 likely written down for the first time around 500 BCE. However, all printed editions