At the Last Supper, after Jesus changed bread and wine into His own Body and Blood, He told His disciples to "Do this in memory of Me." This they did. As the disciples brought the Gospel to different parts of the world, they adapted ceremonies of the Liturgy to the customs and music of that people. In the end, four great Centers of Christianity emerged with distinctive Christian customs, but the same Faith. These Centers were located in the great cities of Jerusalem, Antioch, Rome and Alexandria. A couple of centuries later when the capital of the Roman Empire was moved to the Eastern City of Byzantium and renamed Contantinople, an adaptation of the Antioch way of celebrating Liturgy was made. Thus, a new Center of Christianity arose in Constantinople and became known as the Byzantine Church. From Constantinople, the Slavic people of Eastern Europe were converted by Sts. Cyril and Methodius and followed Constantinople and are known as Eastern Catholic. Today, the Eastern Catholics are subdivided into ecclesiastical jurisdictions based on ethnic groupings. The church of St. Nicholas in Orlando is in one of those subgroups called Ruthenian.