History of the peace symbol

Jacobo Prisco at CNN returns to 1958, when a new symbol appeared at protests against nuclear weapons in the UK.

"It's a minor masterpiece with major evocative power," said design guru and cultural critic, Stephen Bayley, in an email. "It speaks very clearly of an era and a sensibility.

"It is, simply, a fine period piece: the ordinary thing done extraordinarily well."

The design is meant to represent the letters "N" and "D" -- standing for "nuclear disarmament" -- as they appear in the semaphore alphabet, which is used by sailors to communicate from a distance with flags.

Gerald Holtom designed it,