As we move into speaking on the book of Philippians is found this historical bit interesting – Doug ><>
Philippi During the Early Christian Era
“The first church attested in the city is a small building that was probably originally a small prayer house. This Basilica of Paul, identified by an mosaic inscription on the pavement, is dated around 343 from a mention by the bishop Porphyrios, who was present at the Council of Serdica that year.
Although there is neither archaeological nor literary evidence for the foundation of the Christian community by Paul, the prosperity of the city in the 5th and 6th centuries was attributed to him and to his martyr cult. As in other cities, many new ecclesiastical buildings were constructed at this time. Seven churches were constructed in Philippi between the mid-4th century and the end of the 6th, some of which competed in size and decoration with the most beautiful buildings in Thessalonica, or even those of Constantinople.”
http://www.sacred-destinations.com/greece/philippi.htm