Redux emerged as a solution to address Facebook's scalability issues within the Model-View-Controller (MVC) architecture. It was inspired by Flux and Elm, emphasizing a one-way data flow and a single centralized store. Redux's core concepts include the store, actions, and reducers, providing a predictable state management solution. While primarily a front-end technology, Redux integrates with frameworks like React, Angular, and Vue.js. It also facilitates complex state handling in applications such as social media platforms, e-commerce sites, collaboration tools and code editors like Visual Studio Code and Atom.