Brief synthesisThe Gaya Tumuli are a serial property consisting of seven cemeteries created by members of the Gaya Confederacy, an ancient collection of several polities that persisted from the 1st through the mid-6th centuries CE in the southern section of the Korean Peninsula. The seven cemeteries are the Daeseong-dong Tumuli, Marisan Tumuli, Okjeon Tumuli, Jisan-dong Tumuli, Songhak-dong Tumuli, Yugok-ri and Durak-ri Tumuli, and Gyo-dong and Songhyeon-dong Tumuli. Criterion (iii): The Gaya Tumuli bear exceptional testimony to Gaya, a unique ancient East Asian civilisation that coexisted with its more strongly centralised neighbours but maintained a distinct confederated political system. IntegrityThe Gaya Tumuli comprehensively manifest the distinct political system of Gaya, incorporating within the boundaries of the component parts all the attributes necessary to convey its Outstanding Universal Value, such as geographical distribution, locational characteristics, types of burial and grave goods. The World Heritage Nomination Office for the Gaya Tumuli is leading the efforts at monitoring the property in an integrated manner.