Eian's centuries

It shows: The centuries
This is what you see: My centuries timeline is pretty much the same as my 20th century timeline in the way that I use it.
This is what I could not show better and what's missing: I could not show that these drawings are actually 3-dimensional in my head. It was too hard to draw it, so I didn't. I did my best to show that they have altitude by drawing that line on the bottom of the picture.

Eian's 20th century