Another bhakthi movement established in the 13th century was of Haridasas, a devotional group of saints who formed the group under the same name, and who were Vaishnavites of the Dwiata philosophy. The founder of this movement was Naraharitirtha, a devout Madhva follower. Their worship is devoted to various forms of Lord Vishnu or Hari. This Bhakthi cult's propagation was not only worship of Vishnu but also to discard animal sacrifice, stop beliefs in superstitions, discourage caste system, and end the worship of many forms of the deity. They also discouraged the practice of astrology and other rituals. Their preachings were in the Kannada language through devotional poetry, a language of the people. However, there were two sects in this group one who wanted the Sanskrit language to be followed, the Vyasakuta and the Dasakuta. The notable Haridasas of that period were Purandaradasa, Vyasaraya, Kanakadasa, Vadiraja, Vijaya Dasa, Jagannatha Dasa, Vasudeva Dasa and Gopala Dasa; many of them became heads of the religious maths founded by Madhva and his disciples. Haridasas are still popular and the songs scripted by many of the earlier Haridasas are very popular.