The history of the world's smallest state, Vatican City, dates back to deep antiquity. In those times, the territory on the right bank of the Tiber, known as Ager Vaticanus (the Vatican field), lay outside Rome's city walls and was considered a special, almost sacred place. According to legend, the name of the area comes from the Etruscan word vaticinari, meaning "to prophesy," as a sanctuary of seers was once located here.
The key factor that determined the fate of this place was the events of the 1st century AD. It was here that the Circus of Nero was located, where the Apostle Peter suffered martyrdom during the persecution of Christians. His modest tomb in the local necropolis became a focal point for the first believers, turning a peripheral field into the spiritual heart of the nascent community.
The turning point in the establishment of Vatican City came in 326 AD, when Emperor Constantine, having converted to Christianity, ordered the construction of a majestic basilica over the apostle's grave. This decision finally secured the region's status as a major center of pilgrimage. Over the centuries, defensive structures and palaces grew around the temple, and after the signing of the Lateran Accords in 1929, the territory received official recognition as a sovereign state.