Is the Chinese Zodiac a traditional Chinese culture

The Chinese zodiac is part of traditional Chinese culture. Twelve Chinese zodiac chronology began in the Eastern Han Dynasty, "Northern History - Yuwenguo biography", recorded Yuwenguo's mother wrote him a letter, the letter said: "the past in the town of Wuchuan born your brother, the eldest is a rat, the second is a rabbit, your body is a snake". Indicates that there were 12 folk use of the Chinese Zodiac. China's ancient records, the ancient Central Plains, the initial use of the "stem and branch chronology".