publication date: Friday, September 20, 2002 (part of Round XVII)
clue: This mellon-head taught the world how to smile.
explanation: Fahlman invented the :-) and :-( symbols often used on the world wide web ("world"). He was a student at Carnegie Mellon University at the time, and the symbols first appeared on that school's computer systems. more…
trivia: This goo was inspired by news reports of the twentieth anniversary of the :-), which Fahlman first used on September 19, 1982.