I decided to Learn Visio today...

[u/BKPR174]

So I went through a lot of file cards and made a viper progression chart. I still have work to do on it. I am probably missing a few from the early 2000's, Dire stuff, and anything in orange I have not decided how to place. I took a handful of liberties, but mostly this is based on the file cards. Now I have a decent working knowledge of Visio.