Kitto's Popular Cyclopedia of Biblial Literature
This distinction is applied to Philippi in Macedonia (). Augustus Caesar had deported to Macedonia most of the Italian communities which had espoused the cause of Antony; by which means the towns of Philippi, Dyrrachium, etc. acquired the rank of Roman colonies, which possessed the privilege of a free municipal constitution, such as was customary in Italy, in exemption from personal and land taxes, and in the commerce of the soil, or the right of selling the land.
Kitto, John, ed. Entry for 'Colony'. "Kitto's Popular Cyclopedia of Biblial Literature". https://www.studylight.org/encyclopedias/eng/kbe/c/colony.html.