476 BC around born at Chamravattam near Ponnani in Kerala state, India. Place is notable for the confluence of Bharatappuzha and the Arabian sea and the meeting place of Ujjayini meridian with the west coast of India. Asmaka, the place often referred by Bhaskara-I as of Aryabhata was the Jain country that surrounded the Vindhyagiri hill of Sravanabelgola. The stone monoliths of that place had given the name Asmaka (hard/big stone) to the south Indian Jain country where Bahubali did penance.
Aryabhata's surviving work Aryabhatiya has 522 CE as the epoch. Recent studies published in the Indian Journal 'Current Science' has brought out the details of his major observations and irrefutable evidence for the fact that the treatise was made on the observations possible in Kerala. His work became popular in Kusumapura, Bihar because Kusumapura had a Jain University and Aryabhatiya did receive immense praise with the academicians of those days.
An astronomical tradition arose out of Aryabhata's works in Kerala and India. Bhaskara-I too belonged to Kerala and since Aryabhata-I was a Jain belonging to Chamravatta (10N51, 75E45) referred to him as Asmakiya. Archaeological remains at Chamravattam and around and also the Yuga system as described in Aryabhatiya establish his connections to the Jain tradition. In fact the river Bharata-puzha is named after the Jain King Bharata, brother of Bahubali and not after the country Bhaarata as the river name gets pronounced now. Same is true about the reference to Bharata in Aryabhatiya and Aihole inscription.
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