This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Chris Brennan's survey of Hellenistic astrology situates Ptolemy's chorography within the wider astrological system the Hellenistic world actually practiced, showing that assigning zodiacal triplicities to geographic regions was one part of a larger, internally consistent set of correspondences between the heavens and the ordinary world, rather than an isolated curiosity within the Tetrabiblos alone.
That wider context matters for a continent entry because it shows chorography was not Ptolemy's own invention out of nothing, earlier Hellenistic astrologers worked with regional astrological associations before him, and Brennan's documented survey traces how Ptolemy's own systematic version came to be the one later tradition preserved and transmitted, largely because his text survived intact while most of the earlier material did not.
Brennan's account also names honestly where the ancient geographic knowledge behind chorography was itself limited and, by modern standards, inaccurate, so an entry can record the documented ancient scheme as a historical intellectual artifact, worth understanding on its own terms, without treating its geography as a reliable modern reference.
An entry therefore uses Brennan for the documented wider tradition chorography belongs to, keeping the specific regional assignment for the primary Ptolemaic text itself.