The first South Korean school for the deaf was established on April 1, 1913, in Seoul, and it was renamed as the National School for the Deaf in 1945, to be later renamed the Seoul School for the Deaf in 1951.
The Korean Sign Language Law (한국수화언어법 韓國手話言語法 Hanguk Suhwa Eoneo Beop), which was adopted on 3 February 2016 and came into force on 4 August 2016, established Korean Sign Language as an official language for the deaf in South Korea equal in status with Korean.
Koreans and Japanese clustered together in the principal component analysis and the best least-squares tree.
The study said that "[c]ommon ancestry and/or extensive gene flow" historically between Koreans and Japanese appears to be "likely" and results in a lot of difficulty finding population-specific alleles that could assist in differentiating Koreans and Japanese.
Bhak Jong-hwa who is a professor in the biomedical engineering department at the Ulsan National Institute of Science and Technology (UNIST) Genome Research Foundation led an international genome research team which involved researchers from Germany, the United Kingdom and Russia, and this team announced information about the genetic structure of modern Koreans.