The Gutenberg Bible was the FIRST book ever printed on the printing press! Cool huh? In the 1450's, Johann Gutenberg, the inventor of the printing press, chose to print The Bible first! Great decision, in my opinion! Shortly after Gutenberg's passing, Peter Schoffer took over Gutenberg's printing press and utilized it for printing The Book of Psalms!
To learn more about this, check out the links below... Gutenberg Bible (gutenberg-bible.com); Printing Press - HISTORY