A cikin karni na 14, ƙananan yankuna da aka warwatse a tsibirin Okinawa sun haɗu zuwa manyan masarautu uku: Hokuzan (北山, Arewacin Dutsen), Chūzan (中山, Tsakiyar Tsakiya), da Nanzan (南山, Kudancin Dutsen). Wannan an san shi da Masarautu Uku, ko Sanzan (三山, Dutsen Uku) lokacin. Hokuzan, wanda ya ƙunshi yawancin arewacin tsibirin, ya kasance mafi girma dangane da yankin ƙasa da ƙarfin soja amma ya kasance mafi raunin tattalin arziki daga cikin uku. Nanzan ya kasance yankin kudancin tsibirin. Chūzan ya kasance a tsakiyar tsibirin kuma ya kasance mafi ƙarfi a tattalin arziki. Babban birninsa na siyasa a Shuri, Nanoku yana kusa da babban tashar jiragen ruwa na Naha, da kuma Kuran-mura, cibiyar cibiyoyin gargajiya na kasar Sin. Wadannan manyan masarautu za su ci gaba da bautar da masarautar Chūzan a matsayin masarautar masarautar masarautar Masarautar Masarautar Masarautar Masarautar Masarautar Masarautar Masarautar Masarautar Masarautar Masarautar Masara
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