JavaScript was created in just 10 days by Brendan Eich at Netscape Communications in 1995, initially called Mocha and later renamed to JavaScript.
JavaScript was standardized as ECMAScript (ES) with the first version, ES1, released in 1997 to ensure consistency across different browsers.
During the early 2000s, JavaScript faced inconsistencies due to different versions in different browsers, which led to the introduction of jQuery to improve compatibility.
ECMAScript 6 (ES6) in 2015 brought significant improvements and features such as let/const, arrow functions, template literals, and modules, making JavaScript more powerful and developer-friendly.