Lithography (from Greek λίθος - lithos, 'stone' + γράφω - graphο, 'to write') is a method for printing using a stone (lithographic limestone) or a metal (steel or aluminium) plate with a completely smooth surface.
Lithography was invented in 1796 by Bavarian author Alois Senefelder as a low-cost method of publishing theatrical posters.[1][2] Lithography can be used to print text or artwork onto paper or other suitable material.