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 affecting "dalits" led to a revival of mass conversions in Gujarat and other states. Some converts admit that the conversion is a political choice to reorganize themselves, as conversion could help them to no longer be classified by the Hindu caste system. Scholars have described Ambedkar's perspective on Buddhism as secular and modernist rather than religious, as he emphasized the atheist aspects of Buddhism and rationality, and rejected Hindu soteriology and hierarchy. Other scholars have interpreted Ambedkarism as a form of critical traditionalism, in which Ambedkar reinterprets traditional Hindu concepts rather than rejecting them altogether. Specifically, scholar states that Ambedkar's