| A | B |
|---|
| empire | a group of nations ruled by a central government and an emperor |
| reign | the time period that a king or queen rules a country |
| historian | person who teaches, studies, and writes about history |
| intact | whole, not in pieces |
| settlement | small, new town or area where a group of people has decided to live |
| isolated | to separate from others, cause to be alone |
| preserved | to maintain, keep in good condition |
| archaeologist | person who studies human life and civilization through items of the past |
| remains | ancient ruins or fossils |
| artifacts | object used by humans a very long time ago |
| fragments | a bit or piece of something |
| observatory | place for scientific study of space or weather |
| dwellings | a place where people live |
| era | time period with a general character |
| remnants | that remains |
| reconstruct | to rebuild, renew to its original state |
| solstice | either the shortest day of the year, or the longest day of the year |
