Founded in 1966; early participants or possibly co-founders include Marion Zimmer Bradley, her sister-in-law  Diana Paxson, Poul Anderson, and others from the Little Men sf fan group. Walter Breen was involved with the group on the West Coast.

A suit against the SCA in 2007 followed a criminal conviction of a chapter in Pennsylvania; this suit mentioned the early history of the SCA, Breen, and MZB.

Details of the civil suit settlement and aftermath here:

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