Vatican City Established as Sovereign State in 1929 Lateran Treaty
Vatican City, a sovereign enclave within Rome, was formally established on February 11, 1929, through the signing of the Lateran Treaty. This agreement, signed by Cardinal Secretary of State Pietro Gasparri and Prime Minister Benito Mussolini, recognized the Holy See as a subject of international law and provided financial compensation for the previously lost Papal States. Covering approximately 0.49 square kilometers, Vatican City remained neutral during World War II. Since 1945, it has evolved into a globally connected center for Catholic governance, expanding its diplomatic network and achieving permanent observer status at the United Nations in 1964. Historically, the area now known as Vatican City, specifically the Mons Vaticanus, was outside ancient Rome and contained gardens, a circus, and burial grounds. Christian tradition holds that the apostle Peter was martyred and buried in the adjacent necropolis, leading to the construction of a basilica over his supposed tomb in 326 by Emperor Constantine, ...