 Inclusive logic was conceived and formalized before free logic per se was. Thus, since inclusive logic with singular terms is de facto free, the inventors of inclusive logics were, perhaps unwittingly, the inventors of free logic. Bertrand Russell suggested the idea of an inclusive logic in (1919, p. 201, n.). Andrezej Mostowski (1951) seems to have been among the first to formalize such a logic. But Morscher and Simons (2001, p. 27, note 3) document earlier discussions of the idea, and Bencivenga (2014) holds that Jaśkowski (1934) contains, at least implicitly, the first inclusive logic. Theodore Hailperin (1953), Czeslaw Lejewski (1954) and W. V. O. Quine (1954) made important early contributions. It was Quine who dubbed such logics “inclusive.”