Anniversary of the Foundation of Vatican City

The anniversary marks the Lateran Treaty, signed on February 11, 1929, between the Kingdom of Italy (under Benito Mussolini) and the Holy See (represented by Cardinal Pietro Gasparri). This agreement resolved the 'Roman Question'—the political conflict between the Papacy and the Italian state after the 1870 capture of Rome. The treaty recognized Vatican City as an independent sovereign entity under the pope's absolute authority, with its own territory, citizenship, and diplomatic relations. It also established Catholicism as the state religion of Italy and provided financial compensation to the Church for lost lands.

Prior to 1929, the pope was effectively a 'prisoner in the Vatican' since the annexation of the Papal States by the Kingdom of Italy. The Lateran Treaty ended this stalemate, granting the pope temporal sovereignty over a small enclave within Rome. The treaty was later incorporated into the Italian Constitution of 1948. The anniversary thus commemorates a pivotal moment in modern Church-state relations and the formal birth of Vatican City as the world's smallest independent state.

The celebration is primarily a religious and civic event within Vatican City. The day begins with a solemn Mass celebrated by the pope in St. Peter's Basilica, attended by Vatican officials, diplomatic corps, and Swiss Guards. The Mass may include special prayers for the pope and the state. Following the liturgy, the pope delivers an address from his study window or at the Apostolic Palace, reflecting on the significance of the treaty and recent Church events.

Traditionally, no special foods are associated exclusively with this holiday, as work in Vatican City largely stops. Vatican employees and residents may attend a reception or public audience with the pope. The Vatican Museums and gardens are often closed to the public, but St. Peter's Square remains accessible. The Swiss Guard conducts a ceremonial display, and the Vatican's flag with the crossed keys and papal tiara is prominently displayed. The day is marked by a spirit of solemnity and gratitude for the sovereignty that allows the pope to exercise his ministry freely.

This holiday celebrates the Holy See's independence and the pope's temporal sovereignty, which are essential for the universal Church's spiritual mission. It underscores the unique status of Vatican City as an independent state within Italy, allowing the pope to be free from political interference. For Catholics worldwide, it symbolizes the Church's autonomy and its role in international diplomacy.

The anniversary also serves as a reminder of the peaceful resolution of a long-standing conflict through diplomacy. It reaffirms the enduring relationship between the Catholic Church and Italy, and the principle that the pope requires a sovereign territory to carry out his global pastoral duties. Thus, the day is both a celebration of statehood and a reaffirmation of the Church's commitment to spiritual freedom.