Caliphate
Around 1880 Sultan Abdul Hamid II reasserted the title as a way of countering the spread of European colonialism in Muslim lands. His claim was most fervently accepted by the Muslims of British India. By the eve of the First World War, the Ottoman state, despite its weakness vis-à-vis Europe, represented the largest and most powerful independent Islamic political entity.  But the sultan also enjoyed some authority beyond the borders of his shrinking empire as caliph of Muslims in Egypt, India and Central Asia.