The 22nd World Science Fiction Convention (Worldcon), also known as Pacificon II, was held on 4âÂÂ7 September 1964 at the Hotel Leamington in Oakland, California, United States.
Pacificon was combined with Westercon, the annual West Coast Science Fantasy Conference, sharing guests of honor and chairmen. The chairmen were J. Ben Stark and Al haLevy.
Approximately 523 people attended.
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