Science fiction fandom in the 1930s became organized. Fans created fanzines, clubs, local chapters, political arguments, early conventions, and a sense that science fiction readers formed a culture of their own.
Table of Contents

| Quick fact | Information |
|---|---|
| Main developments | Fanzines, clubs, Science Fiction League, early conventions |
| Major city scenes | New York, Los Angeles, Philadelphia, Chicago, and others |
| Important groups | Science Fiction League, Futurians, local clubs |
| Long-term result | The foundation of organized fandom |
Fanzines and Clubs
The 1930s saw fanzines move from novelty to infrastructure. Clubs gave readers local identity, while fanzines connected people beyond a single city.
The Science Fiction League
Launched through Wonder Stories, the Science Fiction League encouraged chapters and helped readers imagine fandom as organized activity.
Toward Worldcon
By the end of the decade, fan organization was strong enough to support the first World Science Fiction Convention in 1939.
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