I want to know the answer to the following question:
What group was significant in the expansion of the Christian faith ?
All the background I'm provided with is that "Greek-speaking communities of the Hellenized East were instrumental in the spread of early Christianity in the 2nd and 3rd centuries, and Christianity's early leaders and writers (notably St Paul) were generally Greek-speaking, though none were from Greece.". Is that enough to answer the question?
Answer: yes