NOVA: What influence did these printing innovations have on Chinese history? Yates: Well, that's a question that brings us into the political realm. One of the major social changes that took place in ...

Production of Chinese porcelain flourished during the Song Dynasty. The five major kilns were Guan Kiln, Ge Kiln, Ru Kiln, Ding Kiln and Jun Kiln. Guan Kiln, or the Imperial Kiln, was the leading one.

All the intrigue, corruption, treachery, violence and treasonous behavior apparent in the world today predates our recorded history. So, too, does the cleanup after a dark period. Repair, ...