Buddhism in Japan has been practiced since its official introduction in 552 CE according to the Nihon Shoki from Baekje, Korea, by Buddhist monks. Buddhism has had a major influence on the development of Japanese society and remains an influential aspect of the culture to this day.

In modern times, Japan's popular schools of Buddhism are Pure Land Buddhism, Nichiren Buddhism, Shingon Buddhism and Zen. As of 2008, approximately 34% of the Japanese identify as Buddhists and the number has been growing since the 1980s, in terms of membership in organized religion. However, in terms of practice, 75% practice some form of Buddhism (compared with 90% practicing Shinto, thus most Japanese practice both religions to some extent (Shinbutsu-shūgō)). About 60% of the Japanese have a Butsudan (Buddhist shrine) in their homes.

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