Across
- 1. One of the world's first civilizations
- 6. The wide-scale transition of human cultures from hunting and gathering to agriculture
- 7. A surplus of this is necessary for specialization and innovation to occur
- 8. One of the two rivers bordering the Fertile Crescent
- 9. Extinction of large mammals, like these, might have compelled humans to learn to farm
Down
- 1. This (the act of pursuing a particular line of work and achieving know-how in it) was made possible by the Agricultural Revolution
- 2. One of the first places humans settled was here, also known as the Fertile Crescent
- 3. An innovation of the Neolithic era
- 4. One of the two rivers bordering the Fertile Crescent
- 5. The Sumerian writing system