A caliphate (Arabic: خِلَافَةْ, romanized: khilāfah [xi'laːfah]) is an institution or public office under the leadership of an Islamic steward with the title of caliph[1][2][3] (/ ˈkælɪf, ˈkeɪ -/; خَلِيفَةْ khalīfa [xæ'liːfæh], pronunciation ⓘ), a person considered a political–religious successor to the Islamic prophet Muhammad and a leader of t...