The Qin dynasty lasted for a brief period of 15 years. Emperor Qin founded the empire by unifying all warring states. Qin ruled with absolute control. He also added greatly to China’s progress. He started the construction on the Great Wall of China and the Grand Canal. He also had other roads built to boost China’s trade.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.