Gutenberg completes the 42-line Bible in Mainz
Labels: Johannes Gutenberg, 42-line Bible, Mainz PressAround 1455, Johannes Gutenberg finished the 42-line Bible in Mainz, Germany, using movable metal type and a press. It became a major proof that large, complex books could be produced in multiple nearly identical copies. This success helped launch the European market for printed books that later collectors called incunabula (early printed books).