What purpose did Roman basilicas serve How did they influence later architecture?

Roman basilicas served as public buildings primarily for legal and civic activities, functioning as places for administration, commerce, and gatherings. Their design featured a long central nave flanked by side aisles and a semi-circular apse, which influenced the architectural layout of early Christian churches. This format became a foundational model for ecclesiastical architecture, promoting the use of the basilica style in religious buildings throughout the Middle Ages and beyond, ultimately impacting Western architectural traditions.