User blog comment:Xxkiiroxx/"Shingeki no Kyojin is Set in North America" Theory/@comment-220.104.103.229-20141019171711

I like your theory, and I now believe SnK takes place in North America, but it seems as if you never took into account that SnK takes place in an alternate timeline.

The captured titans were named sawney and bean. This is a real life story which is proof that SnK takes place on earth. However, it took place in the 15th century. SnK uses 850 as the date, this indicates they're using a different calendar system than us. Further proof that it's not 850 AD is that cannons were invented in the 10th century. Canons didn't exist until at least 1260 AD. Hypodermic needles (used to inject Eran) weren't a thing until the late 1600's.

Since they're most likely using a different calendar system,  they're probably also using some type of alternative timeline. It most likely mirrors our own timeline, but there's obviously some differences (our timeline doesn't have Titans). I'd personally set this in the year 1600 - 1700's our time.