The highest estimates for the number of Buddhists and Shintoists in Japan is 84?96%, representing a large number of believers in a syncretism of both religions. However, these estimates are based on people with an association with a temple, rather than the number of people truly following the religion. Professor Robert Kisala (Nanzan University) suggests that only 30 percent of the population identify themselves as belonging to a religion.

Taoism, Confucianism and Buddhism from China have also influenced Japanese beliefs and customs. Religion in Japan tends to be syncretic in nature, and this results in a variety of practices, such as parents and children celebrating Shinto rituals, students praying before exams, couples holding a wedding at a Christian church and funerals being held at Buddhist temples. A minority (2,595,397, or 2.04%) profess to Christianity. In addition, since the mid-19th century, numerous religious sects (Shinsh?ky?) have emerged in Japan, such as Tenrikyo and Aum Shinrikyo (or Aleph).

More than 99% of the population speaks Japanese as their first language. It is an agglutinative language distinguished by a system of honorifics reflecting the hierarchical nature of Japanese society, with verb forms and particular vocabulary which indicate the relative status of speaker and listener. According to a Japanese dictionary Shinsen-kokugojiten, Chinese-based words make up 49.1% of the total vocabulary, indigenous words are 33.8% and other loanwords are 8.8%. The writing system uses kanji (Chinese characters) and two sets of kana (syllabaries based on simplified Chinese characters), as well as the Latin alphabet and Arabic numerals. The Ryukyuan languages, also part of the Japonic language family to which Japanese belongs, are spoken in Okinawa, but few children learn these languages. The Ainu language is moribund, with only a few elderly native speakers remaining in Hokkaid?. Most public and private schools require students to take courses in both Japanese and English.

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