On SDS Origins:
The SDS’s roots can be found in another organisation: the League for Industrial Democracy. LID dates back to 1905, and was founded in part by the defence attorney from the Scopes trial, Clarence Darrow. In a somewhat ironic twist, during the Soviet Era it was strictly anticommunist. Anyway, they formed a student branch, SLID. But those pesky young leftists had ideas of their own, and finally distanced themselves from LID by changing their name, and drafting the greatly influential Port Huron Statement. LID could not accept the sympathetic attitude that the statement took towards communism and eventually cut all ties with SDS by 1966.