Dei Verbum (official title of the Vatican's English translation: Dogmatic Constitution on Divine Revelation – Dei Verbum) was promulgated by Pope Paul VI on November 18, 1965, following approval by the assembled bishops by a vote of 2,344 to 6. It is one of the principal documents of the Second Vatican Council, indeed their very foundation in the view of one of the leading Council Fathers, Bishop Christopher Butler. The phrase "Dei Verbum" is Latin for "Word of God" and is taken from the first line of the document, as is customary for titles of major Catholic documents.
Read more about Dei Verbum: Contents of Dei Verbum, Scholarly Opinion, Biblical Infallibility and Inerrancy