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 Buryatia Buddhism in Buryatia Buddhism in Buryatia—a regional form of Buddhism. Historical evidence gives reason to believe that, from the 2nd century BCE, proto-Mongol peoples (the Xiongnu, Xianbei, and Khitans) were familiar with Buddhism. On the territory of the Ivolginsk Settlement, remains of Buddhist prayer beads were found in a Xiongnu grave. At the beginning of the 17th century, Tibetan Buddhism penetrated northward from Mongolia to reach the Buryat population of Transbaikalia (the area just east of Lake Baikal). Initially, Buddhism disseminated primarily among the ethnic groups that had recently migrated out of Khalkha Mongolia (the Selenga and Zede Buryats). At