I will teach you all about who, how, when and why korean language i.e hanguel was invented.
1. who - King Sejong the great of Jeosan Dynasty with great scholars
2. when - On 15th century, 1443 hanguel was invented
3. how - with the help of the great scholars and phyolspist
4. why - Hanguel was then invented by King Sejong the great because at that time people use to speak only Chinese language which was also known as hanja. And the demrit of chinese language at that time was it was only spoken and learnt by elite people of korean society, which turned to become barier for common people. So THE KING invented very simple language hanguel so that every individual can learn it, read it, and speak it. And the barrier which have been formed since a long time korean society will break.
4. Features of hanguel - Hanguel is one of the most easiest language in the world. It was formed by learning and studying the photoneic structure of our mouth.