It is theorized that Daecheongdo was first inhabited during the Neolithic Age (9500–4500 BC). There are definite signs of habitation from the Goryeo Dynasty (918–1392), during which time the island was used as a place of exile for criminals. The Chinese Emperor Toghon Temür (1320–1370) was exiled there by the Mongol Yuan Dynasty for conspiring in a plot arranged by his stepmother. Legend says he arrived at the island with a court and 100 relatives, then built a palace. The island was generally uninhabited until 1793, when King Jeongjo, of the Joseon Dynasty (1392–1897), imported farmers to cultivate the land. During the Japanese occupation of Korea between 1910 and 1945, there were as many as 10,000 people living there and a large port.[citation needed]
On 10 November 2009, the waters near the island were the scene of a skirmish between the South Korean and North Korean navies. A patrol boat from North Korea was seriously damaged while the navy of South Korea sustained no casualties.[9]
^Van Dyke, Jon et al. "The North/South Korea Boundary Dispute in the Yellow (West) Sea," Marine Policy 27 (2003), 143-158; note that "Inter-Korean MDL" is cited because it comes from an academic sourceArchived March 9, 2012, at the Wayback Machine and the writers were particular enough to include in quotes as presented. The broader point is that the maritime demarcation line here is NOT a formal extension of the Military Demarcation Line; compare "NLL—Controversial Sea Border Between S.Korea, DPRK, "People's Daily (PRC), November 21, 2002; retrieved 22 Dec 2010
^Yŏnʼguwŏn, Hanʼguk Kukpang (1999). "Defense white paper". Ministry of National Defense, Republic of Korea. {{cite journal}}: Cite journal requires |journal= (help)