Worldcon/List of worldcons

This is a list of the World Science Fiction Conventions held so far. Unless otherwise noted, the conventions have been held in the U.S..

1. 1939: Nycon I (New York)
2. 1940: Chicon I (Chicago)
3. 1941: Denvention I (Denver?)
4. 1946: Pacificon I (Los Angeles)
5. 1947: Philcon I (Philadelphia)
6. 1948: Torcon I (Toronto, Canada)
7. 1949: Cinvension (Cincinnati)
8. 1950: NorWesCon? (Portland)
9. 1951: Nolacon I (New Orleans)
10. 1952: TASFiC? (Chicago)
11. 1953: 11th Worldcon (Philadelphia)
12. 1954: SFCon (San Francisco)
13. 1955: Clevention (Cleveland?)
14. 1956: NewYorCon? (New York)
15. 1957: Loncon I (London, England)
16. 1958: Solacon ([South Gate]?)