Long before Western astrology, the Chinese zodiac helped organize years, beliefs, and social life. Here’s how the system of 12 animals evolved over the centuries.

Scientists have uncovered a 12,000-year-old monument that may represent humanity’s oldest calendar, a groundbreaking discovery in the field of archaeology. This ancient structure could redefine our ...

'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 ...

At first glance, the V-shaped symbols carved onto the pillars at Gobekli Tepe — an archaeological site in southern Turkey — don’t look like much compared to the adjacent animal shapes depicting the ...

A profound mystery surrounding the ancient Mayan calendar might finally have been solved. Previous research, on historic inscriptions, has found that the ancient Mayans used a calendar system known as ...

Our modern calendar is the Gregorian calendar, named for Pope Gregory XIII, who reformed it in 1582 to correct some errors in the older Julian calendar. The Julian calendar was named for Julius Caesar ...

The heiau, as it’s known in Hawaiian, was reconstructed in 2007 and dates to the early to mid 15th century, according to a Feb. 24 news release from the University of Hawaiʻi at Mānoa. Researchers ...