| Answer | Crossword Clue |
|---|---|
| ICEAGE | Period ending about 9000 B.C. |
| IPSUS | Battle, 301 B. C., ending Greco-Macedonian period. |
| IRONAGE | Period starting about 1400 B.C. |
| IRONAGE | Period starting about 1000 B.C. |
| IRONAGE | Period beginning in about 1000 B.C. |
| jomon | of, relating to, or typical of a Japanese cultural period from about the fifth or fourth millennium b.c. to about 200 b.c. and characterized by elaborately ornamented hand-formed unglazed pottery |
