| A | B |
| Tigris River | River in Mesopotamia that merges with the Euphrates |
| Euphrates River | River in Mesopotamia that merges with the Tigris |
| Sumer | a region in Southern Mesopotamia |
| Babylon | once the world's largest and richest city, on the banks of the Euphrates River in Northern Mesopotamia |
| Sargon | King of the Akkadians who conquered all of Mesopotamia which created the world's first empire |
| Hammurabi | a Babylonian king who conquered cities to the north and south which created the Baylonian Empire |
| civilization | a society with cities, organized government, art, religion, and class divisions |
| irrigation | method of bringing water to a field from another place to water crops |
| city-state | independent state made up of a city and the surrounding land and villages |
| artisan | skilled craftperson |
| cuneiform | Sumerian system of writing made up of wedge-shaped markings |
| scribe | record keeper |
| empire | group of territories or nations under a single ruler or government |
| complex | having many parts, details, ideas, or functions |
| consist | what something is made up of |
| code | system of principles or rules |