| A | B |
|---|
| history | the recorded events of people |
| prehistory | the period of time before people began writing |
| Archaeologist | a scientist who examines old objects |
| historian | a person who examines written records |
| oral tradition | stories passed on by word of mouth |
| nomad | a person who moves from place to place to find food |
| fertile | description of soil that is a good place to grow plants |
| civilization | a society that has cities, art, and architecture |
| social class | people with similar backgrounds, wealth and ways of living |
| irrigation | a system that supplies water to land from another place |
| surplus | more than is needed |
| artisan | a skilled worker |
