| A | B |
| levee | an ambankment designed to prevent flooding of a river |
| cuneiform | composed of slim triangular or wedged-shaped elements |
| republic | a form of government in which citizens have the right to choose their leaders |
| D-Day | June 6,1944-the date that allies forces landed in France in World War II in the largest invasion in history |
| plague | an epidemic of an often fatal disease |
| astrolabe | an instrument used by navigators to determine latitude |
| papyrus | a plant whose stems are used to make a kind of paper |
| Brutus | an ancient roman politiciam who helped assassinate Julius Ceaser |
| pilgramige | a journey to a place of religious importance |
| philosopher | a person who studies truth and knowledge |
| emperor | the ruler of an empire |
| myth | a traditional story that may include gods and goddesses and often explain events in nature |
| strike | the refusal to work until demands are met |
| tenement | an overcrowded slum apartment building |
| socialism | an economic system in which private individuals own most business and resources |
| capitalism | an economic system in which private individuals own most business and resources |
| renaissance | the intellectual and economic movement that began in the mid 1400s and lasted until the 1600s |
| poisonous gas | known as the silent killer |
| fascism | a government led by a dictator having complete power |