In the short period that I have been on OGF I have heard about mapping your country throughout its history, by mapping, say 1850, and then 1900, and then 1950, and the present.(not sure if I explained this quite right). I would like to do this for a county that I have in Alormen, Central 22 (name coming soon!), but don't really what the best/good way to do it is. Does anyone have any suggestions?