Along the same lines as the map I posted above, someone else created this web-page that cites the defining characteristics of Solomon Kane, as exerpted from the Robert E. Howard stories, showing many of the covers of the WEIRD TALES issues they first appeared in.
And maps and world history of the times in which Solomon Kane is portrayed.

https://sites.google.com/site/skprofile00/home

Someone spent a heck of a lot of time assembing the material on this website. While it is very true to Robert E. Howard, my only complaint is that it doesn't give a good overview of the Robert E. Howard stories and their chronology, or help you to put in order the comics stories that adapt them. Which I may do here at a later time.