All four emerged in river plains .
| Civilisation | River | Where |
|---|---|---|
| Harappan | Sindhu and Sarasvati | Indian subcontinent |
| Mesopotamian | Euphrates and Tigris | West Asia |
| Egyptian | Nile | Egypt |
| Chinese | Huang He | Northern China |
The three we will now study are the Mesopotamian, Egyptian and Chinese civilisations.