Rishabhanatha (also Rsabhadeva, Rishabhadeva, or Rsabha which literally means "bull") is the first Tirthankara (ford maker) in Jainism. A mythical leader, he is believed in Jainism to have lived millions of years ago. He was the first of twenty-four teachers in the present half cycle of time in Jain cosmology and called a ford maker because his teachings helped one across the sea of interminable rebirths and deaths (samsara). He is also known as Adinatha of Jainism which translates into "First (Adi) Lord (Natha)", as well as Adishvara (first Ishvara), Yugadideva (deva of yuga), Prathamaraja (first king), and Nebheya (son of Nabhi). Along with Mahavira, Parshvanatha and Neminatha, Rishabhanatha is one of the four Tirthankaras that attract the most devotional worship among the Jains.