publication date: Tuesday, September 26, 2000 (part of Round X)
clue: Heliocentrism may be true, but don't call him Saint Nick.
explanation: Copernicus, a European astronomer, got in trouble with the Catholic church for proclaiming his theory of heliocentrism. "Nick" refers to his first name. more…
trivia: Several players initially guessed Galileo Galilei, who was more famous for heliocentrism than Copernicus, but who had nothing at all to do with the words "Saint Nick."