[Cross-posted at Revise and Dissent.]
... I'm a bad historian! No, well, actually, I have a post included in the latest Carnival of Bad History, which may or may not mean the same thing. Head on over to Hiram Hover's place and decide for yourself -- and while you're there, make sure you sample the other egregious ("Outstanding ... in one way or another", as Sir Humphrey Appleby once put it) examples on display.