when did vatican city become a sovereign state
Vatican City This situation was resolved on 11 February 1929, when the Lateran Treaty between the Holy See and the Kingdom of Italy was signed by Prime Minister and Head of Government Benito Mussolini on behalf of King Victor Emmanuel III and by Cardinal Secretary of State Pietro Gasparri for Pope Pius XI.[12][10][25] The treaty, which became effective on 7 June 1929, established the independent state of Vatican City and reaffirmed the special status of Catholicism in Italy.[26]
First Vatican Council The council was convoked to deal with the contemporary problems of the rising influence of rationalism, liberalism, and materialism.[4] Its purpose was, besides this, to define the Catholic doctrine concerning the Church of Christ.[5] There was discussion and approval of only two constitutions: the Dogmatic Constitution on the Catholic Faith and the First Dogmatic Constitution on the Church of Christ, the latter dealing with the primacy and infallibility of the Bishop of Rome.[5] The first matter brought up for debate was the dogmatic draft of Catholic doctrine against the manifold errors due to rationalism.[6]