Chinese zodiac · culture
History of the Chinese zodiac
The stem–branch calendar and its twelve-animal symbolism have related histories. The standard animal order was established by the Eastern Han period; the Great Race is a later story explaining that order.
A calendar vocabulary
Ten Heavenly Stems and twelve Earthly Branches form sixty possible pairs. The animals are associated with the twelve branch positions, rather than forming twelve constellations on the sky.
Keeping the systems apart explains why a Rat animal name, the branch 子 and a full year name such as 甲子 carry different information.
Animals in historical objects
Tang-period tomb sets show the animals dressed in official robes. The complete twelve-figure set in the Metropolitan Museum dates to the seventh or eighth century. Animal-headed figures made the calendar sequence visible in a burial setting.
A story about order
The Great Race places the Rat before the Ox and ends with the Pig. Different retellings explain the Cat’s absence differently. Read the story as a way to remember the sequence alongside the material evidence.