List of religious populations

There are twelve classical world religions—those religions most often included in history of world religion surveys and studied in world religions classes: Baha’i, Buddhism, Christianity, Confucianism, Hinduism, Islam, Jainism, Judaism, Shinto, Sikhism, Taoism, and Zoroastrianism. Here are overviews of ten of these classical religions.

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9. Bahai – 7.1 million followers

The Bahai Faith  is a monotheistic religion which emphasizes the spiritual unity of all humankind. Three core principles establish a basis for Bahai teachings and doctrine: the unity of God, that there is only one God who is the source of all creation; the unity of religion, that all major religions have the same spiritual source and come from the same God; and the unity of humanity, that all humans have been created equal, and the unity in diversity. The Bahai Faith was founded by Bahá’u’lláh in 19th-century Persia. Bahá’u’lláh was exiled for his teachings from Persia to the Ottoman Empire and died while officially still a prisoner.