The Sabu Disk: An Enigma from the Dawn of Egyptian Engineering The Sabu Disk is one of the most puzzling artifacts ever discovered from ancient Egypt, dating to the First Dynasty (circa 3100–2900 BCE), a period that marks the very beginning of pharaonic civilization. The object was discovered in 1936 by British archaeologist Walter B. Emery inside the tomb of the high-ranking official Sabu at Saqqara. Today, the disk is preserved and displayed in the Egyptian Museum. Carved entirely from schist,