THE GREAT SCHISM THAT DIVIDED EAST AND WEST by Paul L. Miller In 1054, Pope Leo IX sent an emissary, Cardinal Humbert, from Rome to Constantinople. The cardinal's visit with Patriarch Cerularios was meant to be a mission of conciliation. It became anything but. The cardinal excommunicated the patriarch who, in turn, excommunicated the cardinal. The main point of contention was the use of leavened bread during the celebration of Mass, according to MacMillan Publishing's <Encyclopedia of Religion.> While it is commonly accepted that the separation of Rome and Constantinople into two Christian Churches was the result of centuries of conflict, the event became known as the Great Schism of 1054. The schism, which reflected numerous long-standing tensions between the eastern and western Roman empire, may have been inevitable. The Church had remained united for centuries without solving several theological disputes. Political and cultural differences between east and west further fueled the separation. "The problems had been brewing for some time," said Father William Saunders, president of the Notre Dame Institute in Alexandria. "There were conflicting power centers with different cultural traditions." The Mediterranean civil centers became strongholds for the early Christian Church. Disciples carried their ministries to the population centers of the time. "Cities such as Antioch, Rome and Alexandria attracted the apostles and evolved into centers for evangelization," John Faris wrote in <Eastern Catholic Churches: Constitution and Governance.> The conversion of Emperor Constantine provided the Church with a political superstructure in which it could flourish. The history of the Church after that event in some ways paralleled the history of the Roman Empire for the remainder of the millennium. When the sleepy fishing village of Byzantium was transformed into