| A | B |
|---|
| Fertile Crescent | Arean of fertile land that is crescent shaped |
| River Valley Civilizations | 4 early civilizations near rivers |
| Egypt | Nile River |
| India | Indus River |
| China | Huang He River |
| Mesopotamia | Tigris and Euphrates Rivers |
| Civilization | An advanced and organized society |
| Agriculture | Allowed humans to settle in one place. |
| Cradle of Civilization | An area where the earliest civilizations developed |
| Early Time Periods | Paleolithic, Neolithic, Bronze Age |
