1920s

When we aren't sure of a date, use this broad term, and hope to pin it down better later.

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Births and Deaths:

Convention series started or ended:

Onetime conventions:

Bids:

Publications started or ended:

Publishers founded or closed:

Awards made, started or ended:

Stores opened or closed:

Clubs founded or disbanded:

First Fandom

Fanhistory:

Early Femmefen - Fan Memoirs - First Fandom - Jews in Fandom - Numerical Fandoms

New fanspeak coined:

First Fandom

Miscellaneous:

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Asia:

Australia:

Britain:

Canada:

Europe:

Ireland:

New Zealand:

US:

Rest of the World: