Born (India), 476
Āryabhaṭa I is the foremost astronomer of the classical age of India. He was born in Aśmaka, but later lived in Kusumapura, identified as the modern city of Patna. Nothing much is known about his personal life, except that he was a great and revered teacher. He is referred to as Kulapa (or Kulapati, vice chancellor), quite possibly of the Nalanda School. His work Āryabhaṭīya is the earliest preserved astronomical text of the scientific period of ancient Indian astronomy that bears the name of an individual.
Āryabhaṭa wrote at least two works on astronomy: (1) Āryabhaṭīya, a very well known work and (2) Āryabhaṭa-siddhānta, a work known only through references to it in later works. Āryabhaṭīyadeals with both mathematics and astronomy and is noted for its brevity and conciseness of composition. It contains 121 stanzas in all and is divided into four chapters, each called a pāda. There exist a number of commentaries written in...
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