Pāṇini

Panini (Sanskrit: पाणिनि; IAST: Pāṇini) was an ancient Indian Sanskrit grammarian and linguist whose masterwork, the Aṣṭādhyāyī, is the foundational text of Vyākaraṇa (linguistics)—one of the six Vedāṅgas (auxillary scholarly disciplines) of ancient Indian scholarship. He lived during the mid-1st millennium BCE, dated variously by most scholars between the 6th–5th and 4th centuries BCE.

The historical facts of his life are unknown, except only what can be inferred from his works, and legends recorded long after. His most notable work, the Ashtadhyayi(Aṣṭādhyāyī) (Devanagari: अष्टाध्यायी), is conventionally taken to mark the start of Classical Sanskrit. His work formally codified Classical Sanskrit as a refined and standardized language, making use of a technical metalanguage consisting of a syntax, morphology, and lexicon, organised according to a series of meta-rules.

Since the exposure of European scholars to his Ashtadhyayi in the nineteenth century, Pāṇini has been considered the "first descriptive linguist", and even labelled as "the father of linguistics". His approach to grammar influenced such foundational linguists as Ferdinand de Saussure and Leonard Bloomfield.