Method of Construction

Constructed by: Kate McCloskey '97

The first step in making the calendar wheels is to cut two 3/4-inch-thick boards into a 25 cm square (for the large days wheel) and a 15 cm square (for the small number wheel). Next, find the center of each board and drill a half-inch hole. From the center of the large wheel, drill twenty half-inch holes around a circle of radius 10.75 cm; they should be spaced about 18 degrees apart when finished. From the center of the small wheel, drill thirteen half-inch holes around a circle of radius 7.31 cm; they should be spaced about 27.7 degrees apart when finished. Then cut the two squares into circles of radius 10.75 cm (large) and 7.31 cm (small), which should cut the drilled holes in half. Next, cut twenty half-inch dowel pegs 3/4 inches in length which are then glued into the indentations (left by the drill holes) in the large wheel. The two wheels are then attached by placing a half-inch dowel rod in the center of each wheel and then through a 18.25 cm board, allowing the small wheel to rotate around the large one to count the days of the week.

Sources, Resources and Links

Nuttal, Z. "The Fundamental Principles of Old and New World Civilizations." Archaeological and Ethnological Papers of the Peabody Museum, v. 2. Salem, MA: The Salem Press Co., 1900.

Seler, E. "The Day Gods of the Mayas." Mexican and Central American Antiquities, Calendar Systems, and History.

Ed. Bowditch, C. P. Washington, DC: Washington Government Printing Office, 1904.

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