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The Mayans also Incorporated the sun’s movements into the architecture of temples and pyramids which aligned with the northernmost and southernmost rising points of the sun during the summer and winter solstices.
“It wasn’t just the Mayans who developed complex solar calendars,’’ Dr. Knappenberger explained. “Ancient inhabitants of the American southwest also built structures that were used to signal seasonal changes.”
In January, 1981, Dr. Knappenberger and other astonomers will travel to Chaco Canyon in northwestern New Mexico to see the Anasazi “sun dagger”—a solar timepiece made out of stone which marks the seasons and demonstrates a very advanced understanding of the sky.
Built by the Anasazi (the Navajo Indian name which means “Ancient Ones”), three vertical slabs of sandstone lean against a cliff face in such a way as to mark the changes of seasons with light daggers as the sun moves across the sky throughout the year.
The images the sun makes on the large carved spiral, a petroglyph, on the face of the cliff behind the slabs, indicate seasonal changes as
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