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 Lotus Sutra (妙法蓮華經: "Myōhō Renge Kyō"; abbrev. 法華經: "Hokke-kyō"), treatises and letters by Nichiren. Mantra: Nam(u) Myōhō Renge Kyō" (南無妙法蓮華經) Japanese culture maintained an uneasy relation to Buddhist culture. While the Chinese culture was admired, Buddhism was also regarded as a strange influence. During the Kamakura (1185–1333) and Muromachi (1336–1573) Buddhism, or the Buddhist institutions, had a great influence on Japanese society. Buddhist institutions were used by the shogunate to control the country. During the Edo (1600–1868) this power was constricted, to be followed by persecutions at the beginning of the Meiji-restoration (1868–1912). Buddhist temples played a major administrative role