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,
History of Buddhism in Cambodia the "true faith" in Sri Lanka. This form of Buddhism was somewhat militant and highly disciplined in reaction to the wars with the Tamil that nearly destroyed Buddhism in Sri Lanka in the 9th and 10th centuries. As Theravada Buddhism struggled for survival in Sri Lanka, it developed a resiliency that generated a renaissance throughout the Buddhist world, and would eventually spread across Burma, Chang Mai, the Mon kingdoms, Lana, Sukothai, Laos, and Cambodia. In the 13th century, wandering missionaries from the Mon-Khmer-speaking parts of Siam, Burma, Cambodia, and Sri Lanka played an important part in this process. When Prince