History People Science Aryabhata I, wrote his famous astronomical treatise, Aryabhatiya, in 499 CE when he was only 23 years old. Connotations Positive Indian connection Strong Wikipedia (Aryabhatiya) Wikipedia (Aryabhata) Google Books (Biographical Encyclopedia of Mathematicians - Volume 1, pg. 31) Google Books (Mathematics in India, pg. 317) Tags aryabhata astronomy math ancient india