[{SlideShowNav}] !!!Monument, Johannes Gutenberg [{Image src='200gm.jpg' height='800' alt='Monument, Johannes Gutenberg' class='image_left' width='596'}] [{SET customtitle='Monument, Johannes Gutenberg'}] \\ Monument honoring Johannes Gutenberg, the inventor of mechanical movable type, in the Rossmarkt (old Horse Market) of Frankfurt. His invention in the mid-15th century launched the printing revolution and is regarded as one of the key developments of modern history.