quality:correction, structural:scholar_edition
Religion

Sunni Islam was the prevailing Dīn (customs, legal traditions, and religion) of the Ottoman Empire; the official Madh'hab (school of Islamic jurisprudence) was Hanafi. From the early 16th century until the early 20th century, the Ottoman sultan also served as the caliph, or politico-religious leader, of the Muslim world. Most of the Ottoman Sultans adhered to Sufism and followed Sufi orders, and believed Sufism was the correct way to reach God.

Non-Muslims, particularly Christians and Jews, were present throughout the empire's history. The Ottoman imperial system was charactised by an intricate combination of official Muslim hegemony over non-Muslims and a wide degree of religious tolerance. While religious minorities were never equal under the law, they were granted recognition, protection, and limited freedoms under both Islamic and Ottoman tradition.

Until the second half of the 15th century, the majority of Ottoman subjects were Christian. Non-Muslims remained a significant and economically influential minority, albeit declining significantly by the 19th century, due largely to migration and secession. The proportion of Muslims amounted to 60% in the 1820s, gradually increasing to 69% in the 1870s and 76% in the 1890s. By 1914, less than a fifth of the empire's population (19%) was non-Muslim, mostly made up of Jews and Christian Greeks, Assyrians, and Armenians.