Jyotihshastra: Astral and Mathematical Literature c3.24

c3.24

Precise dating of any of these texts is impossible. The earliest, that of Baudhāyana, was perhaps written before 500 B.C., and the remainder presumably antedate the Christian era. It was, indeed, during this period also, probably in the second century B.C., that the most striking śyenaciti of which remains survive was built in Kauśāmbī.¹⁹ The Āpastamba appears to be the second oldest of the major Śulbasūtras, and the Kātyāyana, which consists of a sūtra section (to a large extent repeating sūtras of the Āpastamba verbatim), followed by a verse section, is among the latest; the Mānava has apparently copied some verses from the Kātyāyana.