Top 10 Discoveries that changed the world

10. GunPowder

ImageSource: GunPowder

9. Anatomy

ImageSource: Anatomy

8. Electricity Generation

ImageSource: Electricity

7. Oxygen the fine air

ImageSource Oxygen

6. Photosynthesis

ImageSource: Photosynthesis

5. Penicillin

ImageSource: Penicillin

4. Vaccination

ImageSource: Vaccination

3. Earth is not flat; it's round

ImageSource: Earth

2.Wheel

ImageSource: Wheel

1. Fire

 ImageSource: Fire