The history of the Sovereign Order is unique and profound. This holy Order is famous and revered for the countless works of mercy and charity always performed by its members; for the establishment and operation of the world's first and finest hospitals; for the great sacrificial devotion of this religious order and its loyal defense of the Christian Faith; and for its astonishing military exploits over several centuries, during which time it successfully defended Europe from the terror, encroachments and often massive invasions of various Islamic Empires. Without question, the Order of Saint John played the major role, for more than 500 years, in the preservation of Christendom and Western Civilization.