I have reached something of a milestone. The Anthropology, Personal studies, and Science main headings have all had their connections to nations reversed, so that all 144 nations (and the groups they are part of) now have connections to these topics.  The program of making these reverse connections that I  set out  at the beginning of the year is now mostly done. There is still quite a bit to do in history, and there are various topics at the deeper levels (such as the divisions of culture, several divisions of anthropolgy) that still need reverse connections, but I hope to get these mostly done by the end of the month. After that, I expect to be doing more studies in religion and government, and whatever else seems to be demanded.