Hangul is the Korean alphabet, created by King Sejong the Great in 1443.
It's considered one of the most logical and scientific writing systems in the world!
Unlike Chinese characters, Hangul letters are built from simple shapes that represent how your mouth moves.
King Sejong created Hangul so that common people could read and write. Before Hangul, only scholars who knew Chinese characters could be literate. October 9th is Hangul Day in South Korea!