Printing press

Printing press

1450

Surely this is one of humankind’s most edifying inventions. The printing press — built by Johannes Gutenberg in the mid-15th century -allowed documents and books to be produced quickly and cheaply in bulk, bringing literature to the masses. Indeed, this device wrenched the knowledge of the ages away from a minority of wealthy and learned scholars and placed it in the hands of the everyday person, inspiring many to go on and make world-changing inventions of their own.