It's not easy to tell anyone they're wrong. Telling everyone they're wrong is even harder. But Polish astronomer Nicolaus Copernicus did just that. When? In the 16th century, Copernicus believed that the Earth rotates. He believed that it moves around the sun. Copernicus helped start a revolution. He helped change science and society. How? With the printing press. Write two questions that you have after reading the first paragraph. What more do you want to find out? Type your answer in the text box. Click SUBMIT when you are done.

1. How did Copernicus come to his conclusion that the Earth rotates around the sun?

2. How did the invention of the printing press help spread Copernicus' theories and spark a revolution in science and society?