JavaScript
JavaScript is a programming language created by Brendan Eich at Netscape in May 1995, with the initial prototype developed in approximately 10 days to add interactive capabilities to web browsers. Despite its rapid creation, JavaScript remains the only programming language that runs natively in web browsers and has expanded to server-side development, becoming one of the most widely used programming languages in the world.
Why JavaScript Matters
JavaScript transformed the web from a collection of static documents into an interactive application platform, enabling everything from simple form validation to complex single-page applications. The language's rapid creation story illustrates the intense competition and innovation pace during the browser wars, while its evolution demonstrates how quickly internet technologies can scale from experimental features to global standards.