In my day-job capacity, I'm posting on the fluidity of identity in repositories—how, particularly if you're relying on computer deduplication of identity, there will always be some tentativeness about who is identified as the same person. Repositories have to deal with that tentativeness, rather than hardcoding identity. This is an issue Wikipedia often comes up against, having to split off one article subject from another.
And I was reminded of the morass of Apolloniuses in Classical literature, particularly among medical authors. There are no less than potentially 13 medical authors we know of called Apollonius, according to the TLG Canon of Greek Authors and Works (3rd ed.). Potentially 13, potentially just 9; f.i.q. "possibly the same person as", appears several times in the listing:
- 0680 Apollonius of Memphis, iii BC, cited in Galen
- 0741 Apollonius f.i.q. Apollonius of Memphis, iii BC?, cited in Aëtius
- 0660 Apollonius of Citium, i BC
- 0792 Apollonius of Pergamum, I AD?, cited in Oribasius
- 0739 Apollonius f.i.q. Apollonius of Citium or Apollonius of Pergamum, i BC/I AD?, cited in Alexander of Tralles
- 0789 Claudius Apollonius, I AD, cited in Galen
- 0747 Apollonius Archistrator, f.i.q. Claudius Apollonius, I AD?, cited in Galen
- 0782 Apollonius of Tarsus, before II AD, cited in Galen
- 0810 Apollonius &
- Alcimion, I AD, cited in Galen
- 0790 Apollonius Mys, i BC
- ?? Apollonius Opsis
- 0817 Apollonius Organicus, f.i.q. Apollonius Opsis, i BC?, cited in Galen
- 0791 Apollonius Ther, f.i.q. Apollonius Opsis, i BC?, cited in Oribasius
Our problem in working out who is who is that almost all of them are cited in passing in other medical authors, so we have very little to go on. The Online TLG Canon only represents works published under a distinct author's name, even if only as Testimonia. So it only refers to two of them, Of Citium and Mys. The other 11 authors also have Testimonia, in Galen and Oribasius and Alexander of Tralles and Aëtius, but they haven't been published independently.
So the 2009 Online Canon has more limited coverage of types of author than the 1990 Print Canon (though a longer time range). The Print Canon includes all ancient authors we know about. The Online Canon only includes those authors with texts represented in the corpus, and that is determined by an editor publishing text under that author's name. So if an Apollonius has been cited in Galen, and an editor publishes that citation as a Fragment of Apollonius, Apollonius will have an entry in the Online Canon, and will link to the published text in the corpus. If we only have secondary source material on the Apollonius from Galen, and an editor publishes that material as Testimonia on Apollonius, the Online Canon will still have an entry, because the point of the author entry is to navigate the corpus.
If OTOH an editor has never combed Galen for Apollonius, the Print Canon will still mention the Apollonius as cited in Galen (as a cross-reference), but the Online Canon will not have an entry for him, because it doesn't have a discrete text for him. That places the Online Canon notion of authors at the mercy of their editorial history; but the Online Canon is documenting edited texts.
The 9–13 medical Apolloniuses in the TLG Canon are joined there by 16 other Apolloniuses in Ancient literature:
- 1167 Apollonius (Biographer), wrote a Life of Aeschines
- 0394 Apollonius (Comic)
- 1404 Apollonius (Grammarian)
- 1170 Apollonius of Aphrodisia, historian
- 1169 Apollonius of Athens, another historian
- 2283 Apollonius, yet another historian
- ?? Apollonius (a mathematician), f.i.q. Apollonius of Tyana, putative author of the Apocalypse of Adam
- 0569 Apollonius (Paradoxographer)
- 0550 Apollonius of Perga, mathematician
- 0619 Apollonius of Tyana, philosopher
- 1171 Apollonius of Ephesus, theologian
- 1168 Apollonius the Sophist, author of Homeric Lexicon
- 4259 Apollonius Cronus, philosopher
- 0082 Apollonius Dyscolus, grammarian
- 2491 Apollonius Molon, historian
- 0001 Apollonius of Rhodes, Epic poet
The English Wikipedia knows of 16 non-medical Apolloniuses (but five of them are not in the list above), and no less than 21 physicians called Apollonius, since they're not restricted to medical authors. And Wikipedia is just as aware of the f.i.q. issue. The German Wikipedia's list has 24 Apolloniuses, and they don't seem to overlap completely with the English list. The Catalan Wikipedia's list wins, with 18 medical and 39 non-medical Apolloniuses. And its list is even less clean.
Even adding in places of birth, nicknames, and the genres they wrote in, there is difficulty in differentiating these Apolloniuses. If we had enough metadata on them, after all, instead of passing mentions in Galen, we wouldn't be seeing all those f.i.q. For 0741 Apollonius and 0739 Apollonius, we're reduced to distinguishing them by who else they might be confused with. And the medical Apolloniuses may all be obscure (only Of Citium gets his own English Wikipedia page); but the other Apolloniuses include a major Late Epic poet (0001), the founder of Western grammar (0082), a major figure in Roman religious history (0619), a primary source in Homeric scholarship (1168), and an important contributor to the development of 3D geometry (0550). If it wasn't for places of birth and nicknames, we would not know who we were talking about.
Things are slightly better now with the invention of surnames, and recording years of birth in the Library of Congress record. But only slightly: confusion is certainly still possible. There is now a profusion of identities that people write under in cyberspace; if anything, that's now making things even worse. But that's a topic for my day-job blog...