The Bletchley Park codebreakers depicted in the film The Imitation Game (this year's Oscar winner for Best Adapted Screenplay) worked around the clock to crack the secret of Nazi communications during World War II, but they weren't all about work. They also used their skills for play. Mark Saltveit, World Palindrome Champion and editor of The Palindromist Magazine, has spent years researching palindrome history and recently published an article on Vocabulary.com where he shares his discovery that many well-known palindromes originated from a bit of spirited competition among the cryptanalysts of Bletchley Park. It started with mathematician J.H.C. Whitehead's "Step on no pets," which was answered by Peter Hilton's "Sex at noon taxes," and ended, after many rounds of increasingly heated one-upmanship with "what many consider the best palindrome ever." No, not the Panama one, amateurs.