The main thing the Aryans gave the world is Hinduism. That’s a major religion.
Hinduism developed slowly, and it’s still evolving. The start of Hinduism cannot be traced to one founder with one set of ideas. That’s different from Buddhism, Christianity, or Islam. Hinduism’s beliefs came from many sources. They include the Vedas of the Aryans and ideas taken from pre-Aryan peoples of India.
