2D was founded in 1977-1978 as a result of two years of student activism demanding an alternative to the
eating clubs.
Peter Singer, a noted controversial philosopher at Princeton in favour of animal rights, was invited to eat at 2D on two occasions. In 1999, a group of 2D alumni founded Boston Community Cooperatives, a
501(c)(3) organization that owns and operates a group equity model of communally owned, democratically controlled and affordable residential
housing cooperatives, similar to the
NASCO model of cooperative ownership. == Former members ==