"Fifty-three percent of Protestants could not identify Martin Luther as the man who started the Protestant Reformation."

He was the guy with the theses, wasn't he?

Basic Religion Test Stumps Many Americans, by Laurie Goodstein (New York Times).

“Even after all these other factors, including education, are taken into account, atheists and agnostics, Jews and Mormons still outperform all the other religious groups in our survey,” said Greg Smith, a senior researcher at Pew.