Conventions That May Not Have Happened

This is an odd duck, or more precisely, a series of unrelated odd ducks: Conventions which were announced but which may or may not have actually been held. We also include some cons where we have good evidence they existed or were canceled, but no real detail.

This list does not include deliberate hoaxes!

More information on them would be appreciated!

Convention	Dates	Location	Notes
All-Eastern Science Fiction Conference	May 4, 1941	Newark, NJ
ArmageddonCon	December 28, 2000–January 1, 2001	Jerusalem, Israel
Blackguardcon I	March 24–26 or September, 1967	Los Angeles
Bloomington Conference	November 22, 1942	Bloomington, IL	A poker game? Or faan fiction?
Buscon	July 24–25, 1976	New York to Washington, DC
Contraption - Why... 2k!	April 7–9, 2000	Detroit
ConVoy	April 8–10, 1977	New York to Washington, DC
Discovery 1	May 24–28, 1992	Columbus, OH
Dixiecon	1941	Columbia, SC
Faircon / Silvercon	July 3–6, 1964	New York
LEXICON	May 28–31, 1982	Leicester, UK
Orcon	May 28–30, 1977	Eugene or Salem, Oregon
Riva-Con	1979	Louisville, KY
Southwestern Fantasy Conference	1940s	Oklahoma
Travelcon to the Solacon	August 1958	Chicago to LA
Continuum 16 / Continuum 2021	June 5-8, 2020 June 12, 2021 ????	Melbourne, Australia	Casualty of Covid-19?

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Convention
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This is a convention page. Please extend it by adding information about the convention, including dates, GoHs, convention chairman, locale, sponsoring organization, external links to convention pages, awards given, the program, notable events, anecdotes, pictures, scans of publications, pictures of T-shirts, con reports, etc.

If applicable, please include category Asia, Australia, Canada, Europe, Ireland, NZ, UK, US, ROW or World.