Orthodox Christianity begins with the first Pentecost in Jerusalem and the spreading of the Holy Spirit on Christ's small circle of disciples. It is then that the Orthodox Church was born, today the second largest organized body of Christians in the world. The legal recognition of Christianity was by the Emperor Constantine at the beginning of the fourth century (312AD) and its recognition as the official religion of the Byzantium empire by the end, under Theodosius (392AD).
The Eastern Orthodox Faith has over 500,000,000 followers worldwide.
The more peaceful and less aggressive branch of Christianity.
Most people, when they hear of Christianity, think mostly of the Roman Catholic branch. This branch led the crusades, forced people to convert, and created a world wide genocide, so to speak. Us Orthodox, had absolutely no say in this.