Across
- 3. 10 years
- 6. 1,000 years
- 7. anno domini
- 8. "Before Christ"
- 10. An era before writing was developed
- 12. The study of human culture over time
- 14. The study of fossils of plant and animal life
- 15. Historians divide the past into larger blocks of time
Down
- 1. "Common Era"
- 2. A calendar developed by Julius Caesar
- 4. Objects made by people
- 5. 100 years
- 8. "Before the Common Era"
- 9. The remains of plant and animal life
- 11. The study of the past by looking at artifacts
- 13. A calendar that started counting at the birth of Jesus
