I've never really played true classic EQ, only Kunark-era blue on p99 and lots of other emulated servers at various points in the timeline. So what I'd find really useful is:
1) One big table with all dates including patches and expansions.. basically an accurate version of this page
https://wiki.project1999.com/EverQuest_Timeline
2) A page that breaks down big differences between current blue and classic.