▁based ▁in ▁Indones ia ▁Category : Organ izations ▁based ▁in ▁Jak arta ▁Category : Organ izations ▁established ▁in ▁ 2 0 0 3 <0x0A> </s> ▁Sam ois ▁was ▁a ▁les bian - f em in ist ▁B DS M ▁organization ▁based ▁in ▁San ▁Francisco ▁that ▁existed ▁from ▁ 1 9 7 8 ▁to ▁ 1 9 8 3 . ▁It ▁was ▁the ▁first ▁les bian ▁B DS M ▁group ▁in ▁the ▁United ▁States . ▁It ▁took ▁its ▁name ▁from ▁Sam ois - sur - Se ine , ▁the ▁location ▁of ▁the ▁fict ional ▁estate ▁of ▁Anne - Marie , ▁a ▁les bian ▁domin at rix ▁character ▁in ▁Story ▁of ▁O , ▁who ▁pier ces ▁and ▁br ands ▁O . ▁The ▁co - found ers ▁were ▁writer ▁Pat ▁Cal if ia , ▁who ▁identified ▁as ▁a ▁les bian ▁at ▁the ▁time , ▁Gay le ▁Rub in , ▁and ▁six teen ▁others . ▁ ▁The ▁roots ▁of ▁Sam ois ▁were ▁in ▁a ▁group ▁called ▁Car de a , ▁a ▁women ' s ▁discussion ▁group ▁within ▁the ▁mixed - gender ▁B DS M ▁group ▁called ▁the ▁Society ▁of ▁Jan us . ▁Car de a ▁existed ▁from ▁ 1 9 7 7 ▁to ▁ 1 9 7 8 ▁before ▁dis continu ing , ▁but ▁a ▁core ▁of ▁les bian ▁members , ▁including ▁Cal if ia ▁and ▁Rub in , ▁were ▁inspired ▁to ▁start ▁Sam ois ▁on ▁June ▁ 1 3 , ▁ 1 9 7 8 , ▁as ▁an ▁exclus ively ▁les bian ▁B DS M ▁group