The NeWS window system was like AJAX, but with:
2) PostScript graphics instead of DHTML graphics, and
3) PostScript data instead of XML data.
I like this bit:
Lua has an extremely flexible roll-your-own object system (not one standard oop paradigm, but the basis for making all different kinds, but very simple, not nearly as powerful and general purpose as CLOS, not quite as elegant and minimal (nor as bloated a runtime) as Self).
The previous versions of Flash were based on an absolutely horrible and inefficient virtual machine, which has finally been entirely rewritten by grown-ups, and includes a JIT, so it has drastically better performance.
Overall, very interesting stuff, and with more great links than a Wikipedia article. Go read it!