One of the frustrating things about trying to do history or intnernational studies of any kind is that I've been adding countries in pretty much strict order of population. That isn't working. Some of the historically most interesting countries, for instance those with a long written history or widespread international political or economical influence, are not the most populous. That means thas that the practical utility of the knowledge base is badly crippled: I can't even talk intelligently about the early 20th century of India without reference to the British empire, or Indonesia without the Netherlands, and although there are plenty of nations in Latin America, I haven't had enough of them listed to distinguish french-speaking from portuguse-speaking countries.
I did some connecting of biographies to the particular 20 year periods of the 19th century, and some additional connections of biographies to particular individuals. I know from having done this analysis before that with my current listing, this is going to be rather heavily biased toward 19th century Britain. Fine, I can fix that by looking more carefully at other nations and periods, but I'll have a starting point to work from, For now, however, the frustration with trying to do European history without Austria, Hungary, or even Greece is just too much. When it comes to literature or mathematics, or even techniques of building construction...I surrender. Strict order of population has to go. I've been creepy crawling with adding nations: Time to put on some speed.