After fighting during 1,500 years, the Aryans that migrated to Central Asia handed down the Revelation and Tradition of a splendid Religion to their descendants; millenary Vedas conveyed this religion. Vedas, which means “pure science”, are a series of hymns and chants that those ancient people usually offered to their gods; in the beginning, they did not write down these hymns, but conveyed them orally from generation to generation.