When is the earliest record of the trunk and branch calendars?

According to Oracle Bone Inscriptions's records, on the fifth day of the Shang Dynasty, the date was recorded by the dry support. From this point of view, at the latest about 1300 BC, China began to calculate the date by the stem and branch. However, the continuous record without disorder began with the first solar eclipse recorded in Spring and Autumn Annals. It was in Lu Yingong for three years at that time, and there was an eclipse in February. From this day on, from the Spring and Autumn Period to the present more than 2,700 years, the records of cadres and party branches have never been interrupted or disordered. This is a miracle, unique in the world civilization. As for the heavenly stems and earthly branches chronology, it can also be confirmed that it was used in the Qin Dynasty, but it was called the traditional chronology at that time. For example, according to historical records, when Qin Shihuang was eight years old, he was in "Qietan", namely Shen Nian. The chronology of cadres and branches consistent with the present is taichu calendar in the Western Han Dynasty.