| A | B |
| Paleolithic | Old Stone Age |
| Neolithic | New Stone Age |
| Artifacts | Weapons, tools, and other things made by humans |
| Irrigation | A way of brining water to crops |
| Archeologists | People who look for evidence buried in the ground |
| Anthropologists | People who study how humans developed |
| Ziggurat | A large Sumerian temple |
| scribe | someone who is taught to read and write |
| Ice Age | Times of extreme cold when sheets of ice covered portions of the earth |
| Domestication | Taming animals or planting for human use |
| Fire | Helped people cook, keep warm, and scare animals away |
| Specialization | developing new and different skills |
| Mesopotamia | This area is located between 2 rivers |
| Cuneiform | Sumerian writing system |
| Artisans | skilled workers |
| Sumerians | Invented the plow, wheel, and sailboat |
| Hammurabi | Wrote a legal code that covered most areas of daily life |
| Sargon | King of Akkadians and conquered all of Mesopotamia |
| Caravan | Traveling group of merchants |
| Babylon | Center of Chaldean Empire |
| Assyrians | Built a GREAT army to protect their land |
| Chaldeans | Rebelled against the Assyrians and invented the 7 day calendar |