



Plate XX. Scheme of the Mayan Calendar as presented in the 

 Codex Tro-Cortesianus. In the center is Itzamna, the God of' the 

 Sky, and his spouse, under what has been called the celestial tree. 

 The band of hieroglyphs that frames in this picture contains the 

 twenty day signs of the Mayan month. The figures on the out- 

 side are arranged in four groups, according to the four directions of 

 the compass. At the top or east we again see Itzamna and his 

 mate. In the north, or right hand quarter, human sacrifice is 

 shown and the Death God sits opposite the God of War. In the 

 east and in the south are also shown pairs of divinities. A series of 

 dots running from one day sign to another covers the tzolkin or 

 260 day cycle of names and numbers. 



102 



