Framework · 2010–2016 · Web Boom
Backbone.js
Minimal structure for early client MVC. Taught the browser to think in models before React rewrote the rules.
Why Backbone.js faded
Backbone faded when two-way binding frameworks and then virtual DOM libraries offered better ergonomics. It was the scaffolding era — useful, then obsolete. Its ideas linger in every router and model layer that followed.
Case studies
Patterns

Compare with
Related
Framework · 2010–2016
Knockout.js
Observable view models for declarative UI. MVVM before the term became enterprise cosplay.
Framework · 2010–2021
AngularJS (1.x)
Two-way binding magic that became a migration tax. Angular 2+ was a rewrite; the 1.x apps lingered for years.
Framework · 2006–2018
jQuery
DOM peace treaty for a fractured browser world. Mission accomplished — then frameworks ate its job.