New research reveals how Mayan astronomers built a precise eclipse prediction system using complex lunar mathematics.

A 13th-century manuscript sits under glass, its bark-paper pages filled with vivid glyphs and cryptic figures, in a quiet ...

As the Mayan civilization was in decline, a diligent scribe was working on the oldest book created in the Americas: the Grolier Codex. The book, which contains personified images of the sun, death, ...

Here, an image from the Grolier Codex, a Mayan text that researchers now say is authentic. The authenticity of the Grolier Codex has been disputed for the last four decades. A group of researchers who ...

Scholars of pre-Columbian history have been trying to decipher something called the Grolier Codex ever since it was discovered by looters in a Chiapas cave back in the '60s. It's a 13th-century ...

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Ancient Mayan astronomers turned their eyes to the sky and recorded celestial events with a level of precision that continues to impress scientists today. A new study, published Wednesday in Science ...

In the 1960s, what is said to be one of the rarest books in the world was discovered: an ancient Maya book called the Grolier Codex. While the physical book itself — meaning the actual pages — were ...

Fifty-four years after it was sold by looters, an ancient Maya pictographic text was judged authentic by scholars Thursday. Mexico's National Institute of History and Anthropology said the ...

A bark-paper document with a weird backstory and once suspected to be a forgery is the real deal, researchers say. If true, that increases the likelihood that the plaster-coated book covered with ...

Scholars of pre-Columbian history have been trying to decipher something called the Grolier Codex ever since it was discovered by looters in a Chiapas cave back in the ‘60s. • More: Listen to this ...