Who was the first leader of the Gupta Empire?
Gupta Empire
Aryabhata, a noted mathematician-astronomer of the Gupta period proposed that the earth is round and rotates about its own axis. He also discovered that the Moon and planets shine by reflected sunlight. Instead of the prevailing cosmogony in which eclipses were caused by pseudo-planetary nodes Rahu and Ketu, he explained eclipses in terms of shadows cast by and falling on Earth.[93]