What culture ties united the greek world?
– Greek Orthodox Religion. The New Testament was first written in Greek and Jesus first sent Paul to Greece to spread the Christian Religion to the world. The Cristian church was a Greek one during Byzantine times, until the Catholic church (actually the Western Europe rulers of the Medieval Times) decided to split the church mainly for political reasons. The Ecumenical (World) Patriarchate for Cristianity is the Greek one in Constantinople.