For over one thousand years, the ancient Greek and Roman thinkers held sway over the European Medieval mindset. And so, the earth was thought to be the center of the universe and everything moved around us. That mindset was later codified into doctrine by the Roman Catholic Church. Wouldn't God after all place his greatest creation at the center of the universe? Can you not observe the heavens move around us?
Unfortunately, this idea was wrong and it took the combined efforts of Copernicus and Galileo and hundreds of years for a more correct view of the solar system to take hold. In this activity, students compare the geocentric and heliocentric views of the universe using primary source diagrams from the time period. Activity should take a class period with some needing extra time to finish up. Thank you.