- The Letters and Discoveries of Galileo about the movement of the earth was in the Dialogue of the Chief World Systems
- How he stated the earth movement was that the earth is among the natural bodies that moves circularly
Galileo is known to be the Father of Experimental Science. He carried out scientific experiments to test his theories of motion of objects and mechanics.
It was stated in his "Treatise on the Tides," a paper in 1616, that he used a diagram to explain the earths movement. He stated that the Earth revolves in a counterclockwise direction both on its axis.
Conclusively, Galileo's was known to be the man who gave the theory of the circular movement of the earth.