When did the Vatican become an independent city-state?
Tourism in Vatican City
The Vatican was built during the year 326 A.D. As the population and housing grew, the first palace was built during the 5th century under the reign of Pope Symmachus (498–514). Under the Holy Roman Empire, the Papal States grew to include a large portion of central Italy. But since the unification of Italy in the mid-19th century, Vatican City is the only papal state that has survived. As of 1929, because of the Lateran Treaty, the Vatican is recognized as its own independent state, the smallest in the world in population and land size, with a population of just over 800 people in July 2011. The Pope is not only the head of the Catholic religion but also head of state for Vatican City. Since the Vatican is located in Italy, the main language of the Vatican state (or Vatican City) is Italian.
Vaticanology
Vaticanology is term coined in the 20th century to describe the field of journalism and research studying and reporting about how the Holy See and the Roman Catholic Church operate. It is named after the Vatican City, the Holy See's sovereign territory enclaved with in Rome, Italy. Particular emphasis tend to be placed on the selection and appointment mechanisms by which the Church's leadership emerges.