Taxonomies have played a much more important role in the development o
f the sciences than is generally recognized by sociologists. They have
provided both a foundation for the formulation of basic theory and a
spur to innovative research. This paper traces the development from an
cient times to the present of efforts to create a taxonomy of human so
cieties, the most basic and inclusive of all social systems. It conclu
des with a discussion of the question of whether there are compelling
reasons for preferring any one of the various taxonomies that have bee
n devised. Four principles for evaluating taxonomies are proposed and
applied.