[buffalobuffalo]

I don't know if a bunch of sloppy jQuery modules were ever really a viable option for an SPA. People tried to do it, sure, but I'd say the SPA era really started with backbone.js

[kassner]

ExtJS/Sencha was quite powerful and complete. I’ve built tons of SPAs with it in the late 00s.

[gjtorikian]

Wow, I remember Sencha! It’s been a while since I’d heard that name.

[dsego]

I mostly remember doing $(document).ready blocks in php templates :)

[PaulHoule]

I wrote my first SPA, a knowledge graph editor, using GWT (Google Web Toolkit) which compiled a dialect of Java to JavaScript circa 2006 or so.