I've been looking for an article that I think I found 10+ years ago on the web about a very similar topic, something like "the evolution of database systems". It was a very well written article that I just skimmed through and planned to read properly but could never find it again. I remember it had hand-drawn-style diagrams of database architectures with blue backgrounds, sometimes squiggly lines and maybe even some bees on them (could be just my mind mixing it with something). I'd be eternally grateful if someone here could find it.