belonging or related to an emperor

a line of rulers descended from one family

a highly complex body of workers with many levels of authority

the political leader of a territory containing several countries or groups of people

a military leader operating outside the control of the government

a ruling class of noble families

rule by officials of proven merit

a test given to qualify candidates for positions in the government

the buying and selling of goods; business

a system of managing the wealth and resources of a community or region

the growth of cities

the form of money used in a country

the rule that stated there is one ruler and god wishes them to be in charge

China fell into a period of chaos and division after the fall of what dynasty?

foreign rulers of China from Mongolia who established the Yuan dynasty

philosopher whose ideas were important to the Chinese government

both opened China to foreign trade and later closed China to foreign trade

an explosive powder made of saltpeter and other materials

to protect against disease by transmitting a disease-causing agent to a person, stimulating the body's defensive reactions

to make quantities of an item by using standardized designs and dividing steps of production among the workers

individual characters made of wood or metal that can be arranged to create a printing job and then be used over again

relating to the sea

a conquered country or territory that pays tribute to the conqueror