Conversation so far:
when did the golden age of china end
In 907 the dynasty came to an end when a general named Zhu Wen removed the last Tang emperor and took power.
which dynasty was the golden age of china
The Song dynasty follows the Tang and the two together constitute what is often called China's Golden Age.“

Question: why was the dynasty called the golden age
Self-contained rewrite: why was the tang dynasty called the golden age