Today May 15th is King Sejong The Great’s birthday.
King Sejong the great was the third son of King Taejong and queen Wonkyong. He was the fourth king in Jeoseon Dynasty. He invented Hangul, the Korean alphabet during his reigned in year 1418 – 1450. He also improved the Korean agriculture system and another useful tools such as water clock named Chogyonguu, Korean sundial named Angbuilgwi and a rain gauge named Cheugugi. King Sejong The Great were also expert in music, art and dance. He set up the Guanseupdogam the place where teached Korean music and Chinese music.