PITTSBURGH (AP) — It was a serious contribution to the electronic lexicon. :-) Twenty-five years ago, Carnegie Mellon University professor Scott E. Fahlman says, he was the first to use three keystrokes - a colon followed by a hyphen and a parenthesis - as a horizontal “smiley face” in a computer message.

To mark the anniversary Wednesday, Fahlman and his colleagues are starting an annual student contest for innovation in technology-assisted, person-to-person communication. The Smiley Award, sponsored by Yahoo Inc., carries a $500 cash prize.

Language experts say the smiley face and other emotional icons, known as emoticons, have given people a concise way in e-mail and other electronic messages of expressing sentiments that otherwise would be difficult to detect.

Fahlman posted the emoticon in a message to an online electronic bulletin board at 11:44 a.m. on Sept. 19, 1982, during a discussion about the limits of online humor and how to denote comments meant to be taken lightly.

“I propose the following character sequence for joke markers: :-),” wrote Fahlman. “Read it sideways.”

The suggestion gave computer users a way to convey humor or positive feelings with a smile - or the opposite sentiments by reversing the parenthesis to form a frown.

For more about the smiley face history you can go here.

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