Maya nobility performed bloodletting sacrifices to strengthen a 'dying' sun god during solar eclipses

The Maya created a complex calendar system to regulate their world — one of the most accurate of pre-modern times.

El Castillo pyramid illuminated at night under a starry sky in Chichen Itza, Mexico, one of the largest Maya cities.
El Castillo pyramid illuminated at night under a starry sky in Chichen Itza, Mexico, one of the largest Maya cities.
(Image credit: Matteo Colombo/DigitalVision via Getty Images)

We live in a light-polluted world, where streetlamps, electronic ads and even backyard lighting block out all but the brightest celestial objects in the night sky. But travel to an officially protected "Dark Sky" area, gaze skyward and be amazed.

This is the view of the heavens people had for millennia. Pre-modern societies watched the sky and created cosmographies, maps of the skies that provided information for calendars and agricultural cycles. They also created cosmologies, which, in the original use of the word, were religious beliefs to explain the universe. The gods and the heavens were inseparable.

Kimberly H. Breuer
Associate Professor of Instruction, University of Texas at Arlington

Kimberly Breuer is an Associate Professor of Instruction in the Department of History at the University of Texas at Arlington, where she teaches courses in the history of science and technology and Iberian history and conducts research on teaching and learning. She holds a Ph.D. in history from Vanderbilt University, specializing in Latin American and Native American history in the late medieval and early modern eras. She also earned a BS in Aerospace Engineering and worked in the aircraft industry for several years.