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Counting: Calendars and Cords
Three Great Civilizations
The Maya: Ancient Timekeepers
Aztec Legends and Calendars
Accountants of the Inca
The Spanish Conquest
Test Your Knowledge Test Your Knowledge Projects Projects Links Links Additional Reading Additional Reading

Ancient Mesoamerican Civilizations http://www.angelfire.com/ ca/ humanorigins/ index.html
Links to Mesoamerican history sites.

The Aztecs/Mexicas http://www.indians.org/ welker/ aztec.htm
Introduction to the Aztecs, several quality sites listed, and detailed information about the Sun Stone, and about Aztec gods and rulers.

Andes Expedition http://www.nationalgeographic.com/ andes/ andes.html
National Geographic account of the 1997 Andean expedition that discovered the skeletal remains of a 500-year-old child sacrifice.

Nova Online: Ice Mummies of the Inca http://www.pbs.org/ wgbh/ nova/ peru/
Nova Online special chronicling the 1996 expedition in Peru to uncover frozen Incan mummies.

A Walk Through Time: The Evolution of Time Measurement http://physics.nist.gov/ GenInt/ Time/ time.html
An authoritative history of timekeeping from the National Institute of Standards and Time Physics Laboratory.

Calendars Through the Ages http://webexhibits.org/ calendars/
A good explanation of different units of time and how calendars came to be.

The Maya Astronomy Page http://www.michielb.nl/ maya/ astro.html
Overview of the Maya, including information about accomplishments in mathematics, calendars, writing, and astronomy.

Mayan Civilization http://www.indians.org/ welker/ maya.htm
A discussion of the geography, culture, politics, and arts of the Maya; includes an enlightening article "Mysteries of the Mayans."

Mesoamerican Calendars http://www.d.umn.edu/ cla/ faculty/ troufs/ anth3618/ macalend.html
A unique site that provides a thorough explanation of early Mesoamerican calendars. Includes an almanac and a Mesoamerican date calculator.

Ice Treasures of the Inca http://www.nationalgeographic.com/ features/ 96/ mummy/ index.html
A fascinating interactive expedition of the 1995 discovery by Johan Reinhard of an Incan mummy; outstanding photos with information that includes maps, journals, and audio excerpts.

Credits: Aztec Calendar Stone © Kimball Morrison/South American Pictures.

Other Topics
Cave Art
The Parthenon
Chinese Healing Arts
Counting: Calendars & Cords
The French Revolution
Mass Entertainment
Life in the 1920s
The Environment

These topics correspond to chapters in the Patterns of Interaction series (McDougal Littell, 2005).