| Answer | Crossword Clue |
|---|---|
| AEON | Period like a millennium |
| millenniums | MILLENNIUM, (Latin) a period of one thousand years |
| millennia | MILLENNIUM, (Latin) a period of one thousand years |
| 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 |
| IRONAGE | First millennium BC period |
| OLDKINGDOM | Third-millennium-B.C. period in Egypt |
| postmillennial | coming after or relating to the period after the millennium |
