The printing press

The printing press is a device for evenly printing ink onto a print medium (substrate) such as paper or cloth.
The device applies pressure to a print medium that rests on an inked surface made of movable type, thereby transferring the ink. Typically used for texts, the invention and spread of the printing press are widely regarded as among the most influential events in human history, revolutionizing the way people conceive and describe the world they live in, and ushering in the period of modernity.
Until the middle of the 15th century, books were copied out by hand by monks and friars in monasteries.
This process continued until German Johannes Gutenberg invented the printing press.
The famous Gutenberg Bible was printed in 1455 in the city of Mainz.