Buddhism in Japan began teaching devotion to the "Lotus Sutra". Eventually, his disciples formed their own school of Nichiren Buddhism, which includes various sects that have their own interpretations of Nichiren's teachings. Nichiren Buddhism established the foundation of Japanese Buddhism in the thirteenth century. The school is known for its sociopolitical activism and looks to reform society through faith. In the Muromachi period, Zen, particularly the Rinzai school, obtained the help of the Ashikaga shogunate and the Emperor of Japan, and accomplished considerable development. After the Sengoku period of war, Japan was re-united in the Azuchi–Momoyama period. This decreased the power of Buddhism,
Buddhism in Japan identity. Other schools, and Buddhism in general, simply saw their influence wane. The edict of April 1872 ended the status of the Buddhist precepts as state law and allowed monks to marry and to eat meat. This "codification of a secularized lifestyle for the monk coupled with the revival of the emperor system and development of State Shinto were fundamental in desacralizing Buddhism and pushing it to the margins of society". Japanese identity was being articulated in Nihonjinron, the "Japanese uniqueness theory". A broad range of subjects was taken as typical of Japanese culture. D. T. Suzuki contributed to the