This was done at other places in the Scriptures. Nehemiah 12 names a succession of priests that is difficult to reconcile with a short period of 52 years. Utilizing the Biblical chronology and reconstructing post-Biblical history as well as he could, Rabbi Yose arrived at the conclusion that the world was created 3,828 years before the destruction of the Second Temple. According to this calculation, the Romans destroyed the Temple in ad 68. Rabbinic chronology is at odds with the accepted conventional chronology which establishes the date as ad 70.
Scholars differ by one or two years.
From ad 70 until now, both Rabbinic and conventional chronologies agree. But the real difference is the length of the Persian Conquest. Most scholars agree with the conventional chronology. This is conventional chronology, not Rabbinic chronology. According to Rabbinic chronology, Persian rule until the destruction of the Second Temple in ad 70 spans 420 years.