In Hinduism, the Rudra Sampradaya is one of four Vaishnava sampradayas, a tradition of disciplic succession in the religion. Vaishnavism is distinguished from other schools of Hinduism by its primary worship of deities Vishnu and/or Krishna and their Avatars as the Supreme forms of God. The ascetic Vishnuswami formed the Rudra-Sampradaya, though the sampradaya is believed to have traced its origins to the Hindu deity Shiva, also known as Rudra, who passed on the knowledge imparted to him by Vishnu (or Krishna), on mankind. According to Vaishnavism, Shiva, who has the Shaivism school dedicated to his worship as the Supreme God, is the first and foremost Vaishnava, or follower of Vishnu. According to the tradition, Vishnuswami was fifteenth in the line of passing of the knowledge from teacher to student. The date of formation of the sampradaya is disputed. While James Hastings dates Vishnuswami to the early 15th century, and Carl Olson dates him to the 13th century, followers of the sampradaya says that Vishnuswami was born 4500 years earlier.