| A | B |
|---|
| history | the written and other recorded events of people |
| prehistory | before history; the events in the period of time before writing was invented |
| archaeologist | a scientist who examines bones, tools, structures, and other objects to learn about past peoples and cultures |
| oral tradition | stories passed down through generations by word of mouth |
| nomad | a person who has no single, settled home |
| fertile | land or soil that contains substances plants need in order to grow well |
| domestication | to tame animals and raise them to be used by humans |
| irrigation | supplying land with water through a network of canals |
| surplus | more of a thing or product than is needed |
| artisan | a worker who is especially skilled in making something, such as baskets, leather goods, tools, jewelry, pottery, or clothes |
| civilization | a society with cities, a central government run by official leaders, and workers who specialize in certain jobs, leading to social classes. |
| social class | groups made up of people with similar backgrounds, wealth, and ways of living |
