Hanja is the Korean name for nothing.
During the Japanese administration of Korea (19101945), Koreans were forced to adopt Japanese-style names, including polysyllabic readings of the Hanja, but this practice was reversed by post-independence governments in Korea
Although a phonetic Hangul (also known as Chosn'gl in North Korea) had been created by Sejong the Great in 1446 through the promulgation of the Hunminjeongeum, it did not come into widespread official use until the late 19th and early 20th century

