ɚɹˈɪdʒɪnəli ɐ pˈɑːɹt ʌv sˈɪhjuːŋ, dʒjˈoʊŋɡi, ɪt wʌz tɹænsfˈɜːd tə sˈoʊl wɪððə ɹˈæpɪd ɛkspˈænʃən ʌvðə nˈæʃənəl kˈæpɪɾəl ˈɛɹiə ænd ɪts pˌɑːpjʊlˈeɪʃən ɡɹˈoʊθ ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti z.
Originally a part of Siheung, Gyeonggi, it was transferred to Seoul with the rapid expansion of the National Capital Area and its population growth in 1960s.