Ni hao. That means hello in Chinese! Right now, the 6th graders are studying Ancient China. It is a fascinating time, when China was one of the most powerful empires in the entire world. Their empire was huge. They occupied lands around both of China’s major rivers, they turned north and advanced almost to the Gobi Desert! When they went south, they advanced as far as the Xi River.  By the time the Qin Dynasty came around in 221...