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The height of production of Goryeo [[celadon]] wares, and the invention of moveable type, was in the 12th-13th centuries.

The height of production of Goryeo [[celadon]] wares, and the invention of moveable type, was in the 12th-13th centuries.

Goryeo was conquered by the [[Mongols]] in [[1231]]-[[1257]], but the dynasty is considered to have continued until 1392, when it was succeeded by the [[Joseon Dynasty]].

Goryeo was invaded by the [[Mongols]] beginning in [[1231]], and fell under Mongol control in [[1259]], but the dynasty is considered to have continued until 1392, when it was succeeded by the [[Joseon Dynasty]].

Goryeo first established formal relations with the Okinawan kingdom of [[Chuzan|Chûzan]] in [[1389]], three years before the dynasty fell, but relations are believed to have continued relatively uninterrupted through that transition.

Goryeo first established formal relations with the Okinawan kingdom of [[Chuzan|Chûzan]] in [[1389]], three years before the dynasty fell, but relations are believed to have continued relatively uninterrupted through that transition.