Before revision: That the Earth is an approximately spherical object in rapid motion around the Sun, rather than the apparently obvious and common-sensical appearance of the Earth as an approximately flat plane illuminated by a Sun that rises and falls throughout the day.
After revision: That the Earth is a startionarythat is rotating and approximately spherical object in rapid motion around the Sun, rather than the apparently obvious and common-sensical appearance of the Earth as an approximately flat plane illuminated by a Sun that rises and falls throughout the day.