Type: Concept Map/Timeline

I have been working to revise from my original concept because it didn't necessarily show relationships between the four categories. I did add more information and tried to give an understanding of the breakdown in the categories that made sense. I implemented a color change in the four ares to identify the change as well as putting the timeline next to it as a whole. As a whole, I feel this concept map is a very controlled chaos that could have gone wrong, which I think it is understandable.
close ups: