The wide extent of the Abbasside Caliphate helped in the diffusion of its power and influence. At the present moment out of nearly seventy millions of Mohammedans in India subject to the British Crown, fifty belong to the Sunni Church. So do the Mussulmans of China, Tartary, Afghanistan, Asiatic and European Turkey, Arabia, Egypt, Northern and Central Africa, Bosnia, Herzegovina, Russia, Ceylon, the Straits and the Malayan Peninsula. And almost all acknowledge the spiritual headship of the Ottoman Sovereign. =Shiahism.=—The Shiah Church traces its foundation to the Caliph Ali and the immediate descendants of the Prophet, regarded as the rightful expounders of his teachings. Some twenty millions of Indian Mussulmans are Shiahs; Shiahism is also the State religion of Persia. There are large numbers of Shiahs in the Hijaz, in Egypt and other parts of the world, but always in a minority. The question of the title to the spiritual and temporal headship of Islâm forms the chief point of difference between the two churches. The Sunnis are the advocates of the principle of election; the Shiahs of apostolical descent by appointment and succession; and this difference, which is essentially of a dynastic character,[49] gave birth to constant quarrels. Signs, however, are not wanting that owing to the pressure of extraneous circumstances both Sunnis and Shiahs have begun to realise the necessity of greater harmony and goodwill. =The Sects of Islâm.=—Difference of opinion concerning doctrines and dogmas has given birth in Islâm, as it has in Christianity, to numerous sects. The Sunni Church is divided into four principal ‘persuasions’—the Hanafi, Shâfeï, Mâliki and Hanbali—designated after their respective founders. The followers of any one of these communions may validly offer their prayers under the leadership of a member of another. Hanafïsm is professed by the bulk of the Indian Mussulmans and Arabs, by the Afghans and almost all Central Asian Moslems, the Turks and Egyptians. The Shiah Church also is divided into several sub-sects, of which the principal (the Asnâ-aasharia)[50] constitutes the state religion of Persia. =Ashaarïsm.=—The philosophical side of Islâm is represented nowadays by _Ashaarïsm_ and _Mutazalaism_. The first embodies the orthodox doctrines of the Sunni Church. It holds to the belief in corporeal resurrection at the Last Account, and affirms that the Koran is eternal and uncreated; and that God will be visible in the next world to human sight. Whilst maintaining that the evolution of principles ceased in the third and fourth centuries of the Hegira, in order to bring the rules enunciated by the great expounders of law and religion into conformity with the change of times and conditions of society, it generally allows the widest latitude in their interpretation and application.