Among the pre-Roman Italic populations, the Etruscans began to establish themselves at the beginning of the 9th century BC.and developed a flourishing and refined civilization that significantly influened the first centuries of Roman history. Rome the first metropolis of the West, one of the most important ancient civilizations, which influenced society, culture, language, literature, art, architecture, urban planning, civil engineering, philosophy , religion, law and customs of the following centuries. It is also the heart of Catholic Christianity, it is the only city in the world to host an entire state within itself, the enclave of Vatican City.