The 1200’s seems pretty old to me.
Also, I would think that there’s more unknown than known regarding what the ancient artists knew. A few years ago I read the allegation that Michelangelo was the “real” artist of an ancient Roman work excavated during his lifetime. But anyway...
http://www.freerepublic.com/focus/f-news/1942900/posts
http://www.freerepublic.com/focus/f-chat/1498966/posts
Laocoon and His Son
Vatican Museums | circa 2000 | Mary Ann Sullivan
Posted on 08/28/2004 4:07:50 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1201959/posts
An Ancient Masterpiece or a Master’s Forgery?
(Did by Michelangelo Sculpt the Laocoon?)
New York Times | April 18, 2005 | KATHRYN SHATTUCK
Posted on 04/19/2005 12:08:30 AM PDT by nickcarraway
http://freerepublic.com/focus/f-news/1386416/posts