The latest review of history is still rather sketchy.  Prehistory doesn't have much real content yet. Antiquity and classical and medieval have a little more.  For modern history, I am making best progress in the 19th century.  So far, I have only have a few of the larger civilizations. I hope and expect to fill out the picture with more of them in successive passes. 

I had hoped to do more with social structure and change, but I find that I am working more with institutions of religion and government.  I have what I think of as a workable sketch of major religious history, but this still needs to be filled out. 

I have thought for some time that religion is underemphasized and rather poorly explored as an influence on history. I hope to do more with it.