Ten years ago Sunday, Brett Favre, a thorn in the Vikings' side for nearly two decades, descended from a clear blue Minnesota sky. An angel landing in a private jet, after years of playing the devil. Vikings fans, the media — shoot, the entire states of Minnesota and Wisconsin — lost their collective minds. The Star Tribune's Michael Rand wrote an oral history of that remarkable day — Aug. 18, 2009 — and the Favre Frenzy that came before and after it.

Read the first two parts of the epic tale today. C6-7

Read Parts 3 and 4 Monday on startribune.com