| A | B |
|---|
| technology | the use of skills and tools to meet practical needs |
| Old Stone Age | the period of time from about 2 million years ago to 12,000 years ago |
| hunter-gatherer | a person who meets his needs by hunting and gathering |
| Border Cave | a cave located in Turkey whose inhabitants were hunter-gatherers |
| agriculture | the raising of crops and animals |
| New Stone Age | the period of time from about 12,000 years ago to 6000 years ago |
| domesticate | to train something to be useful to people |
| surplus | an extra supply of something |
| specialization | training to do a particular kind of work |
| civilization | a culture that has developed systems of specialization, religion, learning, and government |
| trade | the exchange of goods |
| time line | a diagram that shows when things took place in a given time period |
| circa | about or around |
