The greatest contribution of Emperor Sejong was the invention of the Korean character "Xun Min Zheng Yin", which was previously used in Korea. There is a passage under the bronze statue of Emperor Shizong - "Our country's words are different from those of China and Chinese characters. For this reason, ordinary people suffer from inaccurate expression even if they want to say something. I thought it was pathetic, so I created 28 new words. "