When did the 5,000-year history of China begin to be calculated?

The Yellow Emperor defeated Yan Di, and together with Yan Di defeated the ministries of Chiyou Jiuli. After merging some of the ministries of Jiuli, the Yellow Emperor became the master of the world, and announced the establishment of People's Republic of China (PRC), and determined the calendar year of heavenly stems and earthly branches as the official calendar, starting from the year of Jiazi, the month of Jiazi, the day of Jiazi and the time of Jiazi, and starting from the solar terms in the snowy area in 2698 BC, 476540 years ago. Emperor Yan's name was Chi Di. And this Chi Di, it should be said, was the last emperor of Yandi. In the previous generation, Emperor Yan was the master of the world, and a hundred herbs poisoned him and died. Since then, his successors have called themselves Emperor Yan, that is to say, Emperor Yan is a dynasty. This dynasty lasted for hundreds of years. According to Records of the Historical Records, it was not until the first year of Zhou Liwang (842 BC) that a definite chronology was established, and the previous chronology could not be verified, so we had to give up (see the first sentence of the Chronology of Twelve Governors in Records of the Historical Records). However, it is impossible to verify how many years the Yan Dynasty lasted. So, with a history of 5000 years, we are still looking for evidence of the specific age. Please remember one sentence: we didn't find it because we haven't found it yet.