Cao Pi Declares Himself Emperor is the agreed title; one adds a different rescue story as an alternative. Cao Pi was the second son of the warlord Cao Cao, trained from boyhood in riding and archery and well read besides. When Cao Cao died in 220, Cao Pi inherited his titles and within the year forced the last Han emperor to abdicate, proclaiming the new Wei dynasty. He reigned only about six years before dying in his late thirties, and Wei itself lasted less than half a century. Editions read the story two ways at once: ambition achieved, and a reign cut short. That doubleness fits a middle stick whose poem praises daily effort and warns, in the same breath, about wine and pleasure.