In the time of the Emperor Augustus this city became a Roman colony, i.e., a military settlement of Roman soldiers, there planted for the purpose of controlling the district recently conquered. It was a "miniature Rome," under the municipal law of Rome, and governed by military officers, called duumviri, who were appointed directly from Rome. Having been providentially guided thither, here Paul and his companion Silas preached the gospel and formed the first church in Europe.
This success stirred up the enmity of the people, and they were "shamefully entreated" (Acts 16:9-40; 1 Thess. 2:2). Paul and Silas at length left this city and proceeded to Amphipolis.
Philippi is also another city: When Philip the tetrarch, the son of Herod, succeeded to the government of the northern portion of his kingdom, he enlarged the city of Paneas, and called it Caesarea, in honour of the emperor. But in order to distinguish it from the Caesarea on the sea coast, he added to it subsequently his own name, and called it Caesarea Philippi.
Philippi is also the site of the final battle between the forces of Marcus Antonius and Octavian Augustus and the forces of Cassius and Marcus Junius Brutus, Julius Caesar's assassins.