A relatively upbeat Rick Perry suffered a bit of a head-slapping gaffe in an appearance post-debate on the campus of Dartmouth College.

The Texas governor was comparatively energetic at his stop at the Beta Theta Pi fraternity on the Dartmouth College campus, taking questions on energy policy, Social Security, and states rights.

But he stumbled in his answer to a young woman’s question about states’ rights; Perry said that one of the “reasons we fought the revolution in the 16th century was to get away from that kind of onerous crown.”

The Revolutionary War was fought in the 18th century.

“Excuse me, Mrs. Wells, will we be expected to know dates on this test?”

Damn gotcha fraternity members.

Michele Bachman didn’t know where the shot heard round the world originated, but she probably generally knew when it was shot.  I mean, within a century or two.