A 13th-century manuscript sits under glass, its bark-paper pages filled with vivid glyphs and cryptic figures, in a quiet reading room in Dresden, Germany. Known as the Dresden Codex, it’s one of the ...

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Here’s what you’ll learn when you read this story: A 12 th century C.E. codex from Maya culture accurately predicts solar eclipses. The eclipse table in the Dresden Codex was a lunar calendar that ...

The Maya Calendar, first devised by the Olmecs and perfected by the ancient Maya civilization, is a complicated timekeeping system made up of three calendars. The Long Count Calendar covers a vast ...

More than a thousand years ago, astronomers from the Maya civilization developed one of the most sophisticated time-keeping systems in the ancient world—a system that could predict solar eclipses for ...

Here's what you'll learn when you read this story: While the Gregorian calendar is our best attempt at rendering Earth's solar reality on paper, it's far from the most complex calendrical system out ...