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,
Faith in Buddhism in millenarian movements in several Buddhist countries, which sometimes resulted in the destruction of royal dynasties and other important political changes. Thus, the role of faith increased throughout Buddhist history. However, from the nineteenth century onward, in countries like Sri Lanka and Japan, and also in the West, Buddhist modernism has downplayed and criticized the role of faith in Buddhism. Faith in Buddhism still has a role in modern Asia and the West, but is understood and defined differently from traditional interpretations, with modern values and eclecticism becoming more important. The "Dalit" Buddhist community, specifically the Navayāna movement, has interpreted