Today is the feast day of St. Jerome, patron saint for librarians. He is remembered for being one of the first great translators of the Bible, completing the Vulgate sometime around the year 405 AD. He also was a voluminous writer in other areas of theology, only matched by the many works of St. Augustine. Remembered as being a very feisty, sometimes controversial figure, Jerome is universally recognized as being a great Father and Doctor of the Church. Perhaps one of Jerome's most famous quotes is "Ignorance of Scripture is Ignorance of Christ." Amen!
St Jerome died in the year 420 AD.
(In works of art, Jerome is often shown with a lion, from whose paw, according to legend, he once drew a thorn.)
For more info, you can check out the Catholic Online site.