I've seen the guidelines for the Swords against Cthulu anotholgy which are here http://www.stoneskinpress.com/index.php/announcing-swords-v-cthulhu/
I have an idea that is set in some period of ancient greece. How do I know what should I reseach? The whole period or just whatever might relate to the story?
Without knowing more, I can only make these haphazard suggestions.
If you have a sense of the tone you're going for, that should help. If pulpy, I'd say not much research. (It's not like Lovecraft himself was a stickler, was he?) Avoid obvious anachronisms unless they're somehow explicable in-story. As far as using historically accurate greek names for articles of clothing and such, I think it's a style/tone choice more than anything. If you're writing in English, you can just call them sandals, you can call it a sword, etc. Look at a map to make sure people can get where they're supposed to be going. And so on.
Good find. I might try to write some Mythos myself.
PS - sandal is from the Greek sandalion
I would probably just write something else unless I was interested enough in that time period to write a lot more than one short story with it. It seems like too much time and effort would be needed to make it anywhere near accurate. But of course that's just me...
I am working on a piece that takes place in 3rd century ad in Arabia/ East Africa region. (Aksum was beginning to mint coins, but had not yet erected obelisks)
I would say, make sure technology is accurate, and basic geography. Depending on your audience, that may be all that is necessary. Unless it is directly related to the story, that would be enough to keep the common reader satisfied. (IMO)
There may be an occasional historian who points out some error.
