Originally a persecutor of the early Jewish Christians until his conversion on the Road to Damascus, Paul of Tarsus, himself a Hellenized Jew from Tarsus, part of the post-Alexander the Great Greek Seleucid Empire, was instrumental in the founding of many Christian churches throughout Rome, including Asia Minor and Greece. Paul's second missionary journey included proselytizing at Thessaloniki's synagogue until driven out of the city by its Jewish community.
