What is "shalivahana"

Shalivahana ( IAST: Śālivāhana) was a legendary emperor of ancient India, who is said to have ruled from Pratishthana (present-day Paithan, Maharashtra). He is believed to be based on a Satavahana king (or kings).

There are several contradictory legends about him. Most legends associate him with another legendary emperor, Vikramaditya of Ujjain, in some way. In some legends, he is presented as an enemy of Vikramaditya; in other legends, he is named as a grandson of Vikramaditya; and in a few legends, the title Vikramaditya is applied to the ruler of Pratishthana. In some of the legends that present them as rivals, their political rivalry is extended to patronage of language, with Vikramaditya supporting Sanskrit and Shalivahana supporting Prakrit. According to some historically inaccurate legends, his birth or one of his battle victories marked the beginning of the Shalivahana calendar era, which is another name for the Saka era.