| Answer | Crossword Clue |
|---|---|
| DARKAGES | Early part of medieval period. |
| BRONZEAGE | Early period of civilization |
| LATELATIN | Language of early A.D. period |
| ERA | The ... of Good Feelings (early 19th-century period) |
| MORN | Early period |
| STONEAGE | Early period |
| IRONAGE | Early period |
| IRONAGE | Early metalworking period |
| IRONAGE | Early developmental period |
| BRONZEAGE | Early toolmaking period |
| EOCENE | Early geological period. |
| NEOCENE | Early geologic period |
| NEOCENE | Early geological period |
| TRIASSIC | Early dinosaur period |
| EOCENE | Period in early history. |
| BRASSERA | Early period in automaking |
| IRONAGE | Early metalworking period, perhaps |
| IRONAGE | Early period in human history |
| SILURIAN | Period in which early invertebrate land animals appeared |
