Ruby on Rails is a web framework that came around in 2004. It was written by David Heinemeier Hansson and was extracted as a framework from Basecamp , a project management web application he had written in Ruby for his company 37signals.
Rails immediately impressed a lot of people by how effortlessly and quickly one could go about writing web applications and soon became quite popular.
At the time it was developed, Ruby was an obscure scripting language from Japan that no one had really heard of. Ruby was really at the heart of why Rails was so successful. It has proved to be a powerful and succinct programming language, and many programmers have stated that it makes programming fun again.