For subdivisions of the 19th century, I have mostly been making better connections with south and southeast Asia: not ll of it, but a few of the larger nations.
The 20th century is also being better connected. Nothing up through the mid 20th century is very useful yet. but from the 1960s onward, I have wider connections. For the late 20th century, starting in the 1980s, I have, for nations such as India, Pakistan, Bangladesh, Indonesia, and Brazil, something a little better than the dead boring "I don't know" and "I haven't looked at this" that I tend to plug in when I'm just mechanically making connections. I'd at least like to have a name of a country's leader in a given 5 year period.
However, there is at least potentially so much politics and economics, (not to mention everything else) packed into a 5 year period that such a note is the barest hint of all the other complicated doings that are going on. That will be coming, eventually.