The text refers to the 9.0.0.0.0 Period Ending ceremony in A.D. 435 (Zender 2000). The location of the Period Ending is stated using the so-called "impinged bone" glyph that has been interpreted to pictographically represent a cave (Bassie-Sweet 1996:64, 95-103) and to represent the word ch'e'en "cave" (David Stuart 1999). As noted, the corn seeds used to create the first human beings were the bone remains of the Corn Goddess. The Maya frequently deposited the bones of their ancestors within caves, in effect, returning them to their place of origin. The bone in this sign may, therefore, represent both the bones of the Corn Goddess and the remains of the ancestors. Another possibility is that the bone represents the mouth of the cave, which was frequently illustrated as a skeletal jaw.