Learn more about Maya daykeepers and how they created lunar calendar tables to predict celestial events.

Our civilization relies on calendars to organize and measure time. Culture, religion, and astronomy have all influenced calendars throughout history. Calendars have a fascinating history, dating back ...

The research team scoured the 12 th century C.E. Dresden Codex—a rare, fully preserved Maya book known for its eclipse table.

CAHOKIA, Ill. — More than 1,000 years ago, the Sun Priest of a nameless Indian tribe stood on a piece of flatland west of what was then the largest Indian town in North America and embarked on a ...

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

More than a thousand years ago, astronomers from the Maya civilization developed one of the most sophisticated time-keeping ...

Leap years. They’re a delight for the calendar and maths nerds among us, but how did they come about and why? Have a look at some of the numbers, history and lore behind the (not quite) ...

Ancient Egyptians may have chronicled the flickering of a star known as "the Demon," perhaps the earliest known record of a variable star, astronomers suggest. The ancient Egyptians wrote calendars ...

Stonehenge may have served as a calendar to keep track of the yearly movements of the sun, suggesting a prehistoric link to sun worship in the eastern Mediterranean, according to new research. A study ...