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 Japan managed to establish Shingon as a school in its own right. Kūkai received two lineages of teaching—one based on the and the other based on the . The word "Shingon" is the Japanese pronunciation of "Zhēnyán" "True Words", which in turn is the Chinese translation of the Sanskrit word "mantra". 1175: Hōnen introduces Pure Land Buddhism to Japan. Jōdo-shū was founded by Hōnen (法然), 1175 Japanese name: 浄土, "Pure Land" Major Influences: Chinese Jingtu Zong (净土宗 "Pure Land school"), Tendai Doctrine: "Nianfo" Primary Text: "Longer Sukhāvatīvyūha Sūtra" ("Muryōju-kyō" 無量壽経) Jōdo Shinshū was founded by Shinran (親鸞), 1224 Japanese name: 浄土真,