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'''Heliocentrism''' is the view that the sun is at the center of the universe. It was proposed by some ancient Greeks, and became the dominant view in the 1700s and 1800s. It was generally abandoned in the 20th century.

'''Heliocentrism''' is the view that the sun is at the center of the universe. It was proposed by some ancient Greeks,<ref>http://galileo.rice.edu/sci/theories/copernican_system.html</ref> and became the dominant view in the 1700s and 1800s. It was generally abandoned in the 20th century.<ref>There's still some professor that teaches it in Ohio.</ref>