Greek sigmas

3. responsible for the full development, in the later 5th century bce, of both the Athenian democracy and the Athenian empire
7. he first to propose a sun-centred universe.
9. restoring internal peace to his country
11. Made the quote "It is better to be envied than to be pitied.
12. the character in ancient Greece who is said to have run non-stop from a battlefield in Marathon to the citadel in Athens in 490 BC
14. author of the History of the Peloponnesian War,
16. his inventions and scientific discoveries
18. was credited with many mathematical and scientific discoveries
20. one of the greatest military strategists and leaders in world history

1. his administrative genius, his great building projects, and his benevolence toward the diverse peoples under his sovereignty
2. his plays
4. was one of the three great Greek tragedians
5. Greatest spartan leading
6. He invented a system of longitude and latitude and made a map of the known world
8. the Republic
10. was one of the best-known and most influential dramatists in classical Greek culture
13. contributions include works on number theory, perspective, mathematical rigour, conic sections, number theory and spherical geometry
15. massive invasion of Greece from across the Hellespont
17. people should care less about their bodies and possessions and more about their souls
19. one of the greatest philosophers who ever lived