A while ago, I went to an exhibition of Andrea Della Robia, an Italian renaissance artist, at the National Gallery in DC. Allegedly his work was made in the 15th century (he is purported to have lived 1435-1525 AD). However, when I saw his work, I was baffled. It looks as though it was recently made, not something from 500 some years ago! How has his "work" been kept in such pristine condition? I would like to point out this is glazed terra cotta, meaning clay. It is not marble or some hard stone. Which means it is very easy to break. Yet the majority of the pieces in this collection are in amazing, "brand new" condition. Are we really expected to believe, that some Italian dude made all this long, long time ago, and someone amazingly kept it well preserved for 500 years? Without any aging, loss of color, or cracks?