Eisai, Japanese Buddhist priest (b. 1141)
Myōan Eisai/Yōsai (明菴栄西, 27 May 1141 – 1 August 1215) was a Japanese Buddhist priest, credited with founding the Japanese line of the Rinzai school of Zen Buddhism. In 1191, he introduced this Zen approach to Japan, following his trip to China from 1187 to 1191, during which he was initiated into the Linji school by the master Hsü an. It is also said that he popularized green tea in Japan, following this same trip. He was also the founding abbot of Japan's first Zen temple Shōfuku-ji and Kennin-ji. He is often known simply as Eisai/Yōsai Zenji (栄西禅師), literally "Zen master Eisai".