In a previous article in these pages (EC 7.1981-82:2-37) I reported on the discovery in the jinben version of the Bamboo Annals of verifiable records of the planetary conjunctions of 1576 and 1059 B.C. I argued that literary and chronological evidence drawn from a variety of Zhou and Han sources indicates that the two celestial events were taken at the time to signal Heaven's conferral of legitimate right to rule on the new dynasty, first Shang and then Zhou.

If this view is correct, the discoveries not only establish the historicity, and indeed the great antiquity, of certain chronological and atronomical records in the Bamboo Annals, they also prove that a concept akin to the Zhou “Mandate of Heaven” must have existed as early as the founding of the Shang in the midsecond millennium B.C., just as implied in the Shangshu. Equally noteworthy is the finding that numerous Zhou and Han works, including those of a notoriously “soft” variety such as the apocryphal “weft” commentaries of mid-Han date, contain mythicized though recognizable accounts of the same celestial phenomena.