A category has to do more than just subdivide another category to be useful and appropriate; the way in which it subdivides must be both useful, not a hindrance to navigation, and not unnecessarily proliferate categories if every possible permutation is created. Category:Quakers by nationality already subdivides Category:Quakers, and I see the largest by nationality grouping only has 315 articles, hardly a cumbersome number to deal with (however one deals with a category's entire contents all at once) considering that it fits on two screens. So we are to categorize that someone was a Quaker both by their nationality, and by the centur[y/ies] in which they lived? The rename is an improvement, at least, and given that there is a well-established denominational subcategory structure of Christians by century, doing it here as well isn't creating a new problem. postdlf (talk) 20:27, 30 April 2011 (UTC)[reply]