Media History Project
mediahst@umn.edu

Possible Moon Phases Engraved on Bone

This sketch of the markings found on a Cro-Magnon bone tool, c. 28,000 BCE, may indicate one of the earliest forms of notation. The markings are suggestive of the phases of the moon, and correspond with lunar phase data of that time (Marshack 1993, p. 14).