Pope Pius XII's Encyclical "Divino Afflante Spiritu" Sept 30 1943 opened the door to a wider interpretation of Sacred Scripture for Catholic Scholars.
The Dogmatic Constitution on Divine Revelation, Latin Title Dei verbum, was issued on 18 November 1965. You may view it at the link below.
Nearly every document ever to be issued by the Vatican over the years is available for examination by qualified researchers in the Vatican Library. However, the researcher must request a specific document as browsing is not allowed.
First of all, it was Pope Pius IX, not Pius II who convened and then presided over Vatican I or the First Vatican Council. Pius IX, called it for the review of the topics that was being dealt in the Church which was: rationalism, liberalism, materialism, inspiration of Scripture, and papal infallibility.
Scripture can be quoted in either italics or quotation marks, depending on the style guide being followed. It is important to be consistent within a document or publication.
It is difficult to find this document on the web. I believe you are looking for a document that was issued on December 14th, 1990. You can inquire to those managing the Vatican's website "Congregation for the Doctrine of the Faith" by emailing cdf@cfaith.va and requesting a copy or means to find one.
The document Cum nimis absurdum that is purported to be issued by Pope Paul IV was created on July 14, 1555. It is not an official Vatican document, there are questions as to its validity, and, even if it is a valid document did not fall under the Papal infallibility as it had nothing to do with faith and morals.
There is no Vatican Island. However, the Vatican is an 'island' in the middle of the city of Rome.
It has been fifty years since the Council issued its last document, and the sad truth is that it is just now starting to be implemented. Most of the things that have happened in the past fifty years were NOT called for by the Council, but were done in the "spirit of Vatican II". The current Holy Father, and his two predecessors have made it abundantly clear that most of the things done in the "spirit of Vatican II" were wrong.
Refer to the document below at the Adoremus website; In order of authority: 1. constitution 2. decree 3. and then declaration
Vatican Council I was the first Ecumenical Council to be held at the Vatican in Vatican City which is an independent country.
Vatican City is the capital of Vatican City the country.
There are no hotels for tourists in Vatican City. Visitors to the Vatican usually stay in hotels in Rome which surrounds the Vatican.