Ihe omumu nke uzo a bu ihe di iche na ihe omumu nke ndi eze nke 4th Dynasty (c. 261324 BC<unk>94), na ihe omumu ya, ihe omumu ya na ebe o di, na Saqqara karia Giza. Dika odi, ihe omumu nke Userkaf nwere ike ibu ihe ngosiputa nke mgbanwe di omimi na echiche nke ndi eze nke BC nke di n'etiti 4th na 5th Dynasties, na pyramid nke Userkaf.
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