Luke identifies Philippi as 'a leading city of the district of Macedonia and a Roman colony' (Acts 16:12). The Latin loanword 'colonia' designated cities granted special privileges, often settled by retired Roman soldiers who retained citizenship rights. These colonies replicated Roman civic life in provincial settings. Philippi received this status after the battle in 42 BC. The designation explains the city's strong Roman character and the officials' concern about Roman citizenship in the narrative.