 47th World Science Fiction Convention

The 47th World Science Fiction Convention (Worldcon), also known as Noreascon 3 (or "... Three", or "... III"), was held August 31–September 4, 1989, at the Sheraton-Boston Hotel, Hilton Hotel, Boston Park Plaza, and the Hynes Convention Center in Boston, Massachusetts, United States.The chairman was Mark L. Olson.