Of the three orthodox divisions, the Sânkhyas, the Naiyâyikas, and the Mimâmsakas, the former two, although they existed as philosophical schools, failed to form any sect. The one sect that now really covers India is that of the later Mimamsakas or the Vedantists. Their philosophy is called Vedantism. All the schools of Hindu philosophy start from the Vedanta or Upanishads, but the monists took the name to themselves as a speciality, because they wanted to base the whole of their theology and philosophy upon the Vedanta and nothing else. In the course of time the Vedanta prevailed, and all the various sects of India that now exist can be referred to one or other of its schools. Yet these schools are not unanimous in their opinions.