This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Christianity is established across Asia Minor and Greece through the missionary journeys of the apostle Paul, carried out between 46 and 57 CE. Paul set out from Antioch in Syria and, together with Barnabas, Silas and others across three separate journeys, carried the movement west across Cyprus and the cities of south central Asia Minor, Pisidian Antioch, Iconium, Lystra and Derbe, then further west across the Aegean into Greece itself.
In Greece, Paul founded congregations at Philippi, Thessalonica and Corinth, and maintained an extended residence at Ephesus in Asia Minor that anchored his work in the region for a sustained period rather than a single passing visit. His preaching in each city typically began inside the local synagogue community before drawing a following that grew beyond it.
What this changed for Christianity's spread was decisive: by the time Paul's own letters to these communities were being written, organized, self-identifying congregations existed in multiple cities across both regions, distinct in their own right from the synagogue communities that had first hosted his preaching, marking Asia Minor and Greece as established territory for the movement rather than a mission field still being opened.