| Term | Definition |
| theocracy gov't | civilization run by priests/ religious leaders (Mayans) |
| totalitarian gov't | civilization run by military (Aztecs) |
| socialism gov't | civilization that provides goods/ services to its people (Incas) |
| Sapa | leader of the Incas |
| civilization | an organized group that has gov't, religion, economy |
| infrastructure | jobs such as garbage collection/sewers that keep civilization running |
| Mayans | created symbol for zero, astronomy and pictographs |
| Incas | had terrace system, road system and weaving |
| Aztecs | enslaved people, had canals and sacrificed 250,000 |
| primary source | written by someone who witnessed an event (journal) |
| secondary source | written by someone who was not at the event (textbook) |