Across
- 1. Discovered earth is a sphere
- 3. "Father of Medicine"
- 5. Founder of Atomism
- 7. Established that Earth was the center of the Universe
- 8. First to propose a sun-centered universe
- 10. Made a map of the inhabited world
- 11. "Father of Modern Science"
- 14. Greatest engineer of the ancient world
- 15. "Father of Geometry"
- 16. Founder of Western Philosophy
Down
- 1. student of Socrates and teacher of Aristotle
- 2. Theorized cosmic cycle of love and strife
- 4. Created a doctrine saying air is the source of all things
- 6. Claimed all things were numbers
- 9. Founder of Ionian natural philosophy
- 10. Greatest astronomer of antiquity
- 12. Calculated circumference of Earth
- 13. First with trigonometric table