Ahmadiyya
Ahmadi thought emphasizes the belief that Islam is the final dispensation for humanity as revealed to Muhammad and the necessity of restoring it to its true intent and pristine form, which had been lost through the centuries. Its adherents consider Ahmad to have appeared as the Mahdi—bearing the qualities of Jesus in accordance with their reading of scriptural prophecies—to revitalize Islam and set in motion its moral system that would bring about lasting peace. They believe that upon divine guidance he purged Islam of foreign accretions in belief and practice by championing what is, in their view, Islam's original precepts as practised by Muhammad and the early Muslim community. Ahmadis thus view themselves as leading the propagation and renaissance of Islam.Mirza Ghulam Ahmad established the Community (or ''Jamāʿat'') on 23 March 1889 by formally accepting allegiance from his supporters. Since his death, the Community has been led by a succession of Caliphs. By 2017 it had spread to 210 countries and territories of the world with concentrations in South Asia, West Africa, East Africa, and Indonesia. The Ahmadis have a strong missionary tradition, having formed the first Muslim missionary organization to arrive in Britain and other Western countries. Currently, the community is led by its caliph, Mirza Masroor Ahmad, and is estimated to number between 10 and 20 million worldwide.
The movement is almost entirely a single, highly organized group. However, in the early history of the community, some Ahmadis dissented over the nature of Ahmad's prophetic status and succession. They formed the Lahore Ahmadiyya Movement, which has since dwindled to a small fraction of all Ahmadis. Ahmadiyya's recognition of Ahmad as a prophet has been characterized as heretical by mainstream Muslims, who believe that Muhammad was the final prophet, and the Ahmadi movement has faced non-recognition and persecution in many parts of the world. Some Sunni Muslims pejoratively use the term ''Qādiyānī'' to refer to the movement.
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