| The Gutenberg Bible is the first book known to have been created with movable metal type. It was printed by Johannes Gutenberg in Mainz, Germany, between 1450 and 1455. The advent of movable type increased the efficiency of printing and the number of books that could be produced. More books and a more literate population, in turn, enhanced the spread of ideas throughout Europe, fueling the 16th-century Protestant Reformation in Germany. |