Onesie Conventions

There have been a lot of one-off conventions: Some intentionally so; others not so much. We collect them here.

We do not include conventions which are part of a series such as Worldcon, Eastercon, Eurocon, etc., regardless of whether they have similar names or not. Nor do we include conventions which were intended as one-shots but later came to be seen as an instance of a continuing convention. (E.g., Smofcon 0 or Midwestcon 0.)

See also Early Conventions for a list of conventions (mostly one-shots) held before the end of 1946.

Convention	Date	Location
NECON	October 14, 1951	Bradford, UK
Buffalocon	May 2-4, 1952	Buffalo, NY (Announced, but no record of it happening)
Wiscon	September 20, 1953	Fond Du Lac, WI?
X-Con	April 10 (presumably) 1954	San Francisco
IllWisCon	July 4-6, 1958	Chicago
1969 Conference on Middle Earth	April 25-26, 1969	Urbana, IL
A2 Relax Icon	February 1972	Ann Arbor, MI
Alpha Draconis	October 29-31 1976	Toronto, ON
Yuccacon	April 15-17, 1977	Colorado State U.
Un-Con	September 9, 1978	Winnipeg, MB
UnreelCon	October 27-29, 1978	Toronto
Whatacon	February 24, 1979	San Diego, CA
A Mid-Winter Convention	January 23-25, 1981	Long Beach, CA
Tolkon	August 21-24, 1981	Sydney, Australia
Triciticon '81	September 18-20, 1981	Vestal, NY
[[ZerCon	November, 1981	Huntsville, AL
Valcon	June 10-12, 1983	Valpariso, IN
Brave New Con	January 13-15, 1984	Reston, VA
Wamcon	February 15-17, 1984
Triangulum	August 30-September 1, 1985	Milwaukee, WI
XIIcon	September 26-29, 1986	Glasgow, Scotland
Victoricon	1991	Melbourne, Australia
Twentycon	July, 1991	Birmingham, UK
Altercon 666	8-10 November, 1991	London
Boise Fantasy Arts Convention	April 24-25, 1993	Boise, ID
Attitude: The Convention	February 14-17, 1996	Malvern, UK
Aliens Stole My Handbag	June 30-July 2, 2000	Shepperton, UK
Tolcon	May 13-15, 2005	Seattle, WA
Wellscon	November 25, 2005	Adelaide, Australia
ValhallaCon	September 4-6, 2009	Bellingham, WA
VillainCon	1-2 October 2011	Perth, Australia
Archipelacon	June 25–28, 2015	Åland, Finland