Nichiren was a Buddhist monk who lived in Japan during the Kamakura period. He founded the Nichiren Sect, a Kamakura Buddhist sect that worships the Buddha and places a strong emphasis on the Lotus Sutra. Due to his religious activities in Kamakura, Nichiren was exiled to Sado Island by Tokimune Hojo Tokimune. He was later pardoned and passed away from a gastrointestinal illness. After his death, Nichiren was given the posthumous titles of Nichiren Daibosatsu by Emperor Go-Kogon in 1358 and Rissho Daishi by Emperor Taisho in 1922.