Board Thread:Wiki discussion/@comment-5019018-20170811014154/@comment-18014300-20170811022051
I'm glad you brought this up because now that you have, I agree it's an issue. I think because they are technically called "eras", and I believe that they are derived from Wookieepedia's usage of them, it makes the most sense to go with your third option. In fact, I am quite resolute about that. The second option doesn't work so well I think when many subjects appear across many mediums, games, novels, and comics alike. We can still have the second option, but it would work only for articles on real-world media, like the ones on actual video games and novels.
The only counter to the third option that I can think of off the top of my head is that the eras might be our own invention technically since unlike in Star Wars they're not as firmly established in Assassin's Creed. As well, before someone starts using the terms "Middle Ages" and "Renaissance", I also want to point out that these are Eurocentric terms. Having grown up through Western education, I know that we tend to see this periodization as universal when they only fit in with European history and cannot be accurately applied to Chinese, Indian, Arabian, etc. history.