One. 1145 was compiled 'Samguk' director since June to 512 in additional occupied Usanguk Usanguk is part of the umbrella is an umbrella of the islets.
Two. 1454 was compiled 'Sejong' showing the Dokdo from Ulleungdo, Dokdo Was expressed in the territory of Korea is.
Three. 1667 in Japan by Dr. 松江 jeojahan 'Eun Hall Aiki', Ulleungdo and Dokdo Since it is often difficult to see in Japan, and Japan have shown that is difficult.
Four. 1728 was compiled "Annals of Sukjong 'Ahn Dokdo Koreans entered the Japanese And to protest, go to the Tokugawa shogunate to claim sovereignty over Dokdo, Pledge I was receiving.
This defeated the Japanese in World War II became the victor in the coalition
1 Memorandum of Union Army General Headquarters Supreme Commander for the return of Dokdo from