Copernican Revolution

Once upon a time, people believed that the Earth was the center of the universe. But then a very smart man named Copernicus came along and said, "Actually, the Earth is just one of many planets that revolves around the sun, which is at the center of the universe."

This was a big deal because it changed the way people saw the world. Before, they thought everything revolved around them, but now they realized they were just one small part of a much larger system.

This idea was called the Copernican Revolution, and it helped pave the way for modern science and astronomy. People started to question old beliefs and discover new things about the world around them.