Christians have also been responsible for opposition to Slavic Native Faith, for instance through the establishment of social media groups against the movement. The Russian Orthodox Church has expressed concern for the growth and spread of Rodnovery across Russia on various occasions. Some hierarchs of the Church have however called for a dialogue with the movement, recognising the importace of the values about the land and the ancestral tradition that it carries with itself, and even proposing strategies of integration of Rodnovery and the Russian Orthodox Church. Some Russian Rodnovers have attempted themselves to improve relations with the Orthodox Church, arguing that Russian Orthodoxy had adopted many elements of historical Slavic belief and rites, though for some by corrupting their original meaning. In this way they argue that Russian Orthodoxy is distinct from other forms of Christianity, and seek to portray it as the "younger brother" of Slavic Native Faith. The Orthodox Christian Old Believers, a movement that split out from the Russian Orthodox Church during the reform of Patriarch Nikon of Moscow in the seventeenth century, is seen by Rodnovers in a more positive light than the mainstream Russian Orthodox Church, as Old Believers are considered to have elements similar to those of the Slavic Native Faith.