Centralized Government- a government in which power is concentrated in a central authority to when a local governments are subject.
Han Dynasty- Chinese dynasty that ruled from 202 B.C. to A.D 23 to 220.
Civil Service- the administrative departments of a government , especially those in which employees are hired on the basis of their scores on examination
Monopoly- a groups exclusive control over the production and distribution of certain goods
Silk roads-a system of ancient caravan routes across Central Asia along which traders carried silk and other trade goods
Assimilation- the adoption of a conqueror's culture by a conquered people.
Mandate of Heaven- in Chinese history, the divine approval thought to be the basis of royal authority.