“In 1887, Ambrose Bierce wrote an essay, ‘For Brevity and Clarity,’ suggesting ways to alter punctuation to better represent tone. He proposed a single bracket flipped horizontally for wry smiles, ‘to be appended, with the full stop, to every jocular or ironical sentence.'”
At Good, the unlikely origins of the pervasive emoticon. Can it can survive the scrutiny of the punctuation fascists? : P (Via Book Bench.)