| Answer | Crossword Clue |
|---|---|
| STONEAGE | Early era of human culture |
| ADENA | Culture era named for Ohio town |
| STONEAGE | Period of human culture. |
| STONEAGE | Dawn of human culture. |
| IRONAGE | Period of human culture. |
| ARCHEOLOGY | Study of past human culture |
| STONEAGE | First known period of human culture. |
| EOLITHIC | Related to the earliest period of human culture |
