 They were excavated in 1924–1925 by Pyotr Kozlov, who found them to be the tombs of the aristocracy of the Xiongnu; one is an exceptionally rich burial of a historically known ruler of the Xiongnu, Uchjulü-Jodi-Chanuy, who died in 13 CE.Most of the objects from Noin-Ula are now in the Hermitage Museum, while some artifacts unearthed later by Mongolian archaeologists are on display in the National Museum of Mongolian History, Ulan Bator.Two kurgans contained lacquer cups, inscribed with Chinese characters believed to be the names of Chinese craftsmen, and dated September 5 year of Tsian-ping era, i.e.