Among the ancient Egyptian hieroglyphs is a sign that can be termed and defined as a “Black Hole.” It is a circle (writing being two-dimensional) filled in black, appearing in the Old Kingdom Pyramid Texts for the first time. Initially serving as a determinative for concepts like “death” or “enemy,” it is also later used for words like “pit,” “hole,” or “cave,” and in a few rare instances this black circle determines the word for the Netherworld (dat) or shade.