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 Thailand Thailand is thought to have been derived from an unknown Mahayana tradition. While Mahayana Buddhism was gradually eclipsed in Thailand, certain features of Thai Buddhism—such as the appearance of the bodhisattva Lokeśvara in some Thai religious architecture, and the belief that the king of Thailand is a bodhisattva himself—reveal the influence of Mahayana concepts. In modern times, additional Mahayana influence has stemmed from the presence of Overseas Chinese in Thai society. While some Chinese have "converted" to Thai-style Theravada Buddhism, many others maintain their own separate temples in the East Asian Mahayana tradition. The growing popularity of Guanyin, a form