📁 姆阿伊阿
This category is for sites and pages on the calendar used by the Maya Indians of southern Mexico and northern central America, and their neighbors.
条目 (2+)
The Prehistoric Society Review of Hengeworld
http://www.ucl.ac.uk/prehistoric/reviews/02_07_hengeworld.html
The Three Dimensions of Human History
http://www.edge.org/3rd_culture/renfrew/renfrew_p1.html