Topic summary
Shastras

Extracted from the Wikipedia article Shastra.
Chronology and authenticity
Shastras are predominantly post-Vedic literature, that is after about 500 BCE. However, it is unclear when various Shastras were composed and completed. The authenticity of the manuscripts is also unclear, as many versions of the same text exist, some with major differences. Patrick Olivelle, credited with a 2005 translation of Manu Dharma-sastra, published by the Oxford University Press, states the concerns in postmodern scholarship about the presumed authenticity and reliability of manuscripts as follows (abridged):