Buddhism in Japan is customary to clean the graves and to hold family reunions. Buddhism in Japan 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 most 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,
Buddhism in Japan particular, represents almost every strand of Buddhist teachings and practices. However, in comparison to Chinese or Korean Buddhist schools that are generally more united and less sectarian in their groupings, Buddhist denominations in Japan have developed into independent sects with autonomous organizations that have differing emphases on the doctrine and separate lay followings." (Authors: Kawananami, Partridg, and Woodhead page 82.)]In the post-Meiji, pre-WWII period, there were officially 13 schools and 56 branches () of traditional Buddhism (i.e., those not established in modern times). The official schools included three from the Nara period, two from the Heian period (Tendai and Shingon),