The term "Decapolis" refers to a group of ten ancient cities located in the eastern part of the Roman Empire, primarily in present-day Jordan and Syria. These cities were known for their Hellenistic culture and were significant trade and cultural centers during the time of Jesus Christ. The name "Decapolis" means "ten cities" in Greek. The ten cities typically included Gerasa (Jerash), Dium, Philadelphia (Amman), Gadara, Hippos, Pella, Scythopolis, Samaria, Cæsarea Philippi, and Raphana. They were characterized by their Greek-style architecture, urban planning, and a mix of Roman and local cultures, making them important hubs for commerce and interaction in the region.