(476–c.550), Indian astronomer and mathematician. His surviving work, Aryabhatiya (499), deals with mathematics, the measurement of time, planetary models, the sphere, and eclipses.
Pronunciation
Aryabhata I
/ˌäryəˌbədə T͟Həˈfərst//ˌɑrjəˌbədə ðəˈfərst/
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