Many years ago people believed that earth was the center of the solar system because from earth, it looks as if the stars and the sun

Moved around the Earth

Explanation:

Nowadays, we know that the sun is roughly at the center of the solar system. However, this was not known in the past. In the past, people believed the Earth to be at the center, with the rest of the planetary objects revolving around it. This is because people relied on the way humans perceive the Earth to move. The motion of the Earth is close to a constant speed in a straight line, which means that we cannot feel its motion. Therefore, it can feel as if the Earth was static, and other bodies were moving around it.