Before revision: From this whiggish perspective, Ptolemy would be criticized because his astronomical system placed the Earth at the center of the universe while Aristarchus would be praised because he placed the Sun at the center of the solar system .
After revision: From this whiggish perspective, Ptolemy would be criticized because his astronomical system placed the Earth at the center of the universe while Aristarchus would be praised because he placed the Sun at the center of the Solar System .