Vatican City
The world’s smallest fully independent country: 44 hectares of Rome, walled on every side but one. It exists because of a deal. After Italy took Rome from the popes in 1870, they refused to leave the Vatican for almost 60 years, until a treaty in 1929 made it a state of its own.
Written from cited sourcesLast checked 28 September 2026Suggest a correction
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From the Papal States
For more than a thousand years the popes ruled a state across central Italy, the Papal States, whose legal basis was the Donation of Pippin of 754.[2] As Italy unified in the 19th century it took them piece by piece, and by 1870 it had annexed the rest, Rome included, and made Rome its capital.[2]
The popes refused to accept it. In protest, each pope from then on remained a voluntary “prisoner of the Vatican”, never leaving the papal grounds.[2]
The 1929 deal
The Lateran Treaty, signed by Benito Mussolini for Italy and Cardinal Pietro Gasparri for the papacy, settled the question in 1929. The papacy recognised Italy, with Rome as its capital, and Italy recognised papal sovereignty over Vatican City, a territory of 44 hectares, and the pope’s full independence.[1]
A concordat signed with it made Catholicism Italy’s state religion, with church marriage recognised by the state and religious teaching in schools; a new concordat of 1985 ended that.[1]
A walled country
Vatican City is an enclave in Rome on the west bank of the Tiber. Medieval and Renaissance walls form its border everywhere except on the south-east, where it opens onto St Peter’s Square. Of its six entrances, three are open to the public: the square, the Arch of the Bells in the basilica’s facade, and the entrance to the museums in the north wall.[2]
It has its own telephone system, post office, radio station, bank, pharmacy and observatory, and Swiss Guards have protected the pope since 1506. Almost everything, from food and water to electricity, comes in from Italy. Beyond its walls, more than 10 buildings in Rome and the papal summer residence at Castel Gandolfo enjoy special extraterritorial privileges.[2]
“centre of the Catholic world and place of pilgrimage”[1]
Timeline
754
Donation of Pippin
The legal basis of the Papal States is laid.[2]
1870
Rome taken
Italy annexes the last of the Papal States and makes Rome its capital.[2]
19297 June 1929
Lateran Treaty in force
Italy recognises the pope’s sovereignty over Vatican City.[1]
1985
New concordat
Catholicism stops being Italy’s state religion.[1]
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Sources
- [1]Lateran Treaty · Encyclopaedia Britannica
- [2]Vatican City · Encyclopaedia Britannica
- [3]
Map geometry from Natural Earth via world-atlas. See credits.