Answer:
Enclaves.
Step-by-step explanation:
Enclaves can be defined as the territory that is surrounded by other larger states' territory. This two territories differ from each other culturally or ethically. Enclaves are formed due to reasons such as political, historical, and geographically.
When a group of particular ethnicity settles down in an area, it becomes their enclaves. Some examples of national enclave are Vatican and San Marino in Italy.
Vatican enclave is an independent and ecclesiastical city which is ruled by a Catholic Pope of Rome, Italy.
San Marino was founded by Saint Marinus, who escaped Diocletianic Persecution.
So, the correct answer is Enclave.