《三國史記》中明言對居道的族姓和家世均不清楚[1] 。只知道他是脫解尼師今的邊疆將官。新羅的鄰國于尸山國（今蔚山廣域市蔚山區）、居柒山國（釜山廣域市東萊區）[2]為新羅邊境之患，居道欲吞併二國，於是每年都命士兵在邊境騎馬為戲，稱為馬技。待兩國人習以為常之後，突然發兵攻打，成功滅了二國。[1]
參考文獻
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