d. by traveling to speak to people across the Roman Empire.
A Christian mission is an organized effort to spread Christianity. Missions often involve sending missionaries across the Roman Empire. These missionaries involve the groups of people who use to travel across geographical boundaries to preach the message of Proselytism (conversion to Christianity) among the poor sects.
<span>If you mean the most accurate way to show shapes and sizes of continents and other features, the globe is best. Any flat map will have some distortion because you can't represent a sphere on flat paper perfectly, without something being distorted.</span>
They moved to the mestopotamias and lived there, expanded their land.