<em>According to the information from my history teacher, cave paintings were made at least </em><em><u>25,000-30,000 years ago.</u></em><em> Some ancient Paleolithic cave paintings were found in Tamil Nadu. Did this help?</em>
The actual material being printed on is usually paper which is out of wood, how ever the printer may be made out of metal, and I am confused on which one you are asking about.
