Groundbreakers

1. Daniel Boone, for example
2. First person to discover America
3. Famous female aviator
4. Led the Lewis and Clark Expedition
5. Inventor of the telephone
6. First person to successfully make a transatlantic flight
7. The Wright Brothers, for example
8. Christopher Columbus and his crews, for example
9. Astronaut who was the first person to set foot on the moon
10. Pocahontas, for example.