- The wheeled cart and the sailboat .
| Invention | What it gave us |
|---|---|
| The wheeled cart | A way to carry goods |
| The sailboat | A way to travel by water |
| Calculations | For buildings and measuring fields |
| A number system based on 60 | The 60-minute hour, 60-second minute, 360-degree circle |
- They used calculations for building structures and measuring agricultural fields .