The Aztec Calendar Stone, a world-renowned monument of Mesoamerican craftsmanship, was buried face-down by Spanish ...

The odd symbols had been noted for centuries - thousands of them appear in Aztec property registries that were created around 1540. But no one knew the value of the symbols or how they were used ...

The stone used in the initial construction was likely repurposed when the dikes were rebuilt, explaining the Aztec symbols etched into the sides of the tunnel.

Let's analyze the complex history of the poinsettia and how it went from an Aztec symbol to a Holiday icon ...

These pictorial symbols were developed from earlier Mesoamerican writing systems and did not represent alphabetic letters, but components of words, ideas and names.

The original stone, which represents the universe and is filled with Aztec symbols, is believed to be from the 15th century. According to Milbrath, the stone was used in Aztec ceremonies ...