Claudius Ptolemy
publication date: Saturday, June 25, 2022 (part of Summer 2022)
category: Science
clue: For almost 2000 years, this Greek mathematician's treatises have been the intersection between astronomy and astrology.
explanation: Ptolemy is primarily remembered for three main treatises, one on mathematics, one on astronomy that introduced a heliocentric model to ancient Greek science, and one on astrology that established the concept of the horoscope. more…
intended difficulty: medium
solved by: Russ Wilhelm, Steve West, LaVonne Lemler, Samir Mehta, Chris Lemler, and Richard Slominsky