The time it takes earth to travel once around the sun. It was calculated by the Mayans.

52-year period where the first day on the 1st and 52nd calendar fall on the same day

A stone slab or pillar with carvings or inscriptions placed in front of temples

Embroidered tunics made by Mayan women. They have complex designs in bright colors.

Triangular Archway with 9 stone layers representing 9 layers of the underworld

A symbol or character in a hieroglyphic system of writing. The Mayans used them in their writing.

Regional variety of a language

Aztec man-made islands for farming

Aztec calendar with sun god's face

A written symbol that represents an object or idea. The Aztecs used them in their writing system.

Bridge whose roadway is held up by cables that are anchored on each end of bridge. The Incas used them.

A type of surgery that involves penetrating the skull. It was an Incan advancement in medicine.

The official Incan language

Knotted sets of strings used for memory aid in sending messages and recording information. The Incas used them.

Base of Mayan number system

Giant Aztec Temple where priests made sacrifices. It had two pyramids. One shrine was dedicated to Huitzilopochtli, the other was dedicated to Tlaloc.

The irrigation system Incas used to bring water to their crops

A road that is raised above water or marshland or sand. The Aztecs built them to connect Tenochtitlan with the mainland.