What language is the Hangul script based on?

The creation of Hangul

Hangul, the writing system used for the Korean language, was created during the 15th century by Sejong the Great and his scholars. Before its invention, Koreans primarily used Classical Chinese characters to write, which was accessible only to the educated elite. This created a significant barrier for commoners who did not have the opportunity to learn Classical Chinese. Sejong's primary goal was to develop a simple writing system that would be easy to learn and accessible to everyone, regardless of their education or social standing.