Proposal: Greek Language
Will questions about Greek culture be considered on-topic in this proposal?
For example: Will questions on the clothing worn in ancient Greece be on-topic?
Questions about what clothing was worn in ancient Greece have nothing whatsoever to do with the Greek language. Therefore, they are decidedly off-topic.
On the other hand, if you were asking about the meaning of the word
στολή, one might reference ancient Greek history to describe the true nuances of this garment.
As far as it is directly about the Greek Language, IMHO, it is on-topic. Anything above and beyond that is definitely off-topic.