Across
- 3. An independent state that works together with other states to achieve a shared military or political goal
- 4. A state containing several countries or territories
- 6. An idea or way of doing things that is common in a certain culture
- 7. A small set of letters that stand for a single sound
- 11. Soldiers who fight while riding horses
- 12. A wide flat plain; present day Iraq
- 14. A large crescent-shaped region in the Middle East
- 17. The idea of all members of society have to obey this law
- 18. The belief in more than one god
- 20. A good or service sold within a country that is produced in another country
Down
- 1. The art of steering a ship from place to place
- 2. A set of laws that governed life in the Babylonian empire
- 5. The spreading of cultural traits from one religion to another
- 8. An area ruled by a distant country
- 9. To supply water to their crops
- 10. Pyramid-shaped brick towers
- 13. A trading system in which people exchange goods directly without using money
- 15. An independent state that includes a city and its surrounding territory
- 16. A system of writing that uses triangle-shaped symbols
- 19. A good or service produced within a country and sold outside its borders