Mahavira, also known as Vardhamāna, was the twenty-fourth tirthankara (ford-maker) who revived Jainism. In the Jain tradition, it is believed that Mahavira was born in the early part of the 6th century BC into a royal kshatriya family in present-day Bihar, India. He abandoned all worldly possessions at the age of 30 and left home in pursuit of spiritual awakening, becoming an ascetic. Mahavira practiced intense meditation and severe austerities for 12 years, after which he is believed to have attained Kevala Jnana (omniscience). He preached for 30 years and is believed by Jains to have died in the 6th century BC, although the year varies by sect. Scholars such as Karl Potter consider his biography uncertain; some suggest that he lived in the 5th century BC, contemporaneously with the Buddha. Mahavira attained nirvana at the age of 72, and his body was cremated.