I like that. Though I just skimmed it. What is missing IMO is volcanism, and how the larger eruptions overlap, maybe with a few years delay, with larger wars and epidemics, caused by misharvests. Maybe I've missed that, by only skimming?

This is nice, I once did something similar for my SO to chart artworks on timeline by different geographic areas. Time was on x-axis, different geographic areas were different timelines vertically, and different art periods were colour coded.

The hardest thing was mapping approximate date descriptions (think "1st half of 17th century") into years to draw on chart.