Respuesta :
Inventions:
- Cross bow
- Gun powder
- Paper
- Printing
- Compass
- Umbrellas
- Kites
- Boat Rudder
- Matches
- Hot air balloon
- Stirups (for horses)
- Cross bow
- Gun powder
- Paper
- Printing
- Compass
- Umbrellas
- Kites
- Boat Rudder
- Matches
- Hot air balloon
- Stirups (for horses)