A Turkish site thought to predate the Great Pyramid of Giza by seven millennia is host to mysterious carvings that archeologists believe could depict a devastating ancient comet strike. The carvings ...

Long before clocks or written calendars existed, ancient farming communities faced a life-or-death problem; they needed to know when seasons would shift. The solution came from above. Civilizations ...

'Calendar' rock carvings from Ancestral Pueblo discovered. The carvings were found at a site called Castle Rock Pueblo on the Mesa Verde plateau straddling the Colorado-Utah border. Early Native ...

Event Abstract: Ancient Maya cosmology and sociocultural conduct was entwined with a complex calendar system. This is evident from thousands of stone inscriptions and other extant texts, especially ...