Across
- 3. Huge change in society, such as the Industrial one
- 5. A sequence of historical events
- 8. Practice of cultivating soil and raising animals
- 9. A new idea or invention that improves something
- 10. One of the modern-day countries within the Fertile Crescent
- 11. Very old; describes early cave drawings
- 13. Soil-turning tool improved by John Deere
- 14. Metal that ended the Bronze Age
- 15. One of the early methods, along with hunting, to obtain food
- 16. Last name of the inventor who patented the reaper
Down
- 1. Metal introduced in the Iron Age that made farming easier
- 2. Taming animals for human use
- 4. Preparing land and growing crops
- 6. Region where plant cultivation began around 8500 BC
- 7. Era when stone tools were replaced by metal ones
- 12. Inventor of the cotton gin
