 McCall (2012) emphasizes that there is a history of two thousand three hundred years of connexive implication. Historical remarks on connexive logic may be found, for instance, in Kneale and Kneale 1962, Sylvan 1989, Priest 1999, Nasti De Vincentis 2002, Nasti De Vincentis 2004, Nasti De Vincentis 2006, Estrada-González &amp; Ramirez-Cámara forthcoming, and McCall 2012. In the latter survey, McCall refers to ~((A → B) ∧ (~A → B)) as Aristotle’s Second Thesis and, following Martin 2004, to Angell’s principle of subjunctive contrariety ~((A → B) ∧ (A → ~B)) as Abelard’s First Principle, which is called Strawson’s Thesis in, for example, Routley 1978 and Mortensen 1984. Aristotle’s Second Thesis and Abelard’s First Principle are interderivable with BT and with BT′, respectively, using intuitionistic principles only. Besides Peter Abelard, another medieval philosopher who discussed and endorsed connexive principles was Richard Kilwardby, see Johnston 2019. El-Rouayheb (2009, p. 215) reports on a critical discussion in thirteenth-century Arabic philosophy of Aristotle’s thesis AT for impossible antecedents. Modern connexive logic commenced with Nelson 1930, Angell 1962, and McCall 1966, while MacColl (1878) may be regarded as a forerunner. After small numbers of publications from the 1960s until the 1990s, with S. McCall, R. Routley, and C. Pizzi as the main contributors, in the 21st century a vigorous new interest in connexive logic emerged. Remarks on the history of modern connexive logic can be found in sections 3–5.