Buddhism has been practiced in Japan since its official introduction in 552 AD according to the Nihon Shoki from Baekje, Korea by Buddhist monks. Though some Chinese sources place the first spreading of the religion earlier during the Kofun period (250 to 538). 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. In 2009, an official survey showed that over half the Japanese families had a "butsudan" or Buddhist altar in their homes. in 2009 data from the Agency of Cultural Affairs stated that there were 89 million Buddhists in Japan. In 2011, after the Tsunami, it was reported that 90% of the Japanese identified as Buddhist or Shinto or a combination of both.
The arrival of Buddhism in Japan is ultimately a consequence of the first contacts between China and Central Asia, where Buddhism had spread from the Indian subcontinent. These contacts occurred with the opening of the Silk Road in the 2nd century BC, following the travels of Zhang Qian between 138 and 126 BCE. These contacts culminated with the official introduction of Buddhism in China in 67 CE. Historians generally agree that by the middle of the 1st century, the religion had penetrated to areas north of the Huai River in China.
According to the Book of Liang, which was written in 635, five Buddhist monks from Gandhara traveled to Japan in 467. At the time, they referred to Japan as the country of Fusang (Chinese: 扶桑; Japanese pronunciation: Fusō, the country of the extreme east beyond the sea), and they introduced Buddhism to the residents of the island nation: