\[ \begin{array}{l} \text { For centuries, ancients believed that our was the center of the world, with } \\ \text { everything else orbiting around it. Later in the 16th century introduced the idea } \\ \text { of a centered system. However, the idea that the Earth goes around the Sun was } \\ \text { proposed much earlier by Great support of this idea was provided in } 1666 \text { by } \end{array} \] who discovered the theory of motion and gravitation.