» Medieval Demographics Made Easy    How many people in a medieval city? How many taverns? How many castles in those hills? This article will let you know.    http://www.io.com/~sjohn/demog.htm

» Division of Territory in Society    Sociology-fluent designers will have a ball with Ed Stephan's population density research. For the rest of us, his notes on tribal territory sizes are enough to enhance the realism of low-technology settings.    http://www.ac.wwu.edu/~stephan/Book/contents.html