Ju Si-gyeong
Linguist who worked at the Korean Language Research Institute and wrote "Korean Grammar"; his pupils founded the Korean Language Research Society
He studied at Paichai School and, as proofreader of the Dongnip sinmun, put all-Hangeul writing and word spacing into practice. In 1907 he became a member of the Korean Language Research Institute set up in the Ministry of Education to standardise the script. He published Korean Grammar (1910) and The Sounds of Speech (1914) and is believed to have first used the name "Hangeul". His pupils founded the Korean Language Research Society, which became the Korean Language Society and produced the Unified Hangeul Orthography.