The nomadic Medjayu peoples inhabit the Nubian desert in the first millennium B.C. but leave little archaeological record other than pan graves. Egyptians establish control over Lower Nubia, but the C-Group people (descendants of the A-Group) of Lower Nubia continue to produce distinctive forms of pottery. Egyptian goods are traded with the kingdom of Kerma to the south, a culture that buries its kings in vaulted chambers beneath huge earthen mounds, furnished with wood beds inlaid with ivory and bronze. Kerma ware is now considered some of the finest ceramic art produced by any culture at any time.