The Tang poet and civil servant who wrote about the suffering of the common people

The captial city of the Tang and Song eras

A fine clay that is baked at high temperatures

Art of writing characters beautifully

Knowing it would grow well in poor soil, the Song introduced a new variety of which crop?

The Chinese discovered that they could use which substance to heat things and make steel?

In the Song dynasty, the Chinese economy grew when they printed

During the Song dynasty, the painting of these was popular.

During the Tang period, trade improved because of the reopening of the Silk Road and the opening of