Introducing the History of Logical Reasoning

The history of logic – and more specifically the history of logical reasoning, on which the current issue of The Reasoner focuses – is nowadays facing methodological and disciplinary challenges similar to those that other historical studies are also confronting. Many of these challenges have to do with a reconsideration and redefinition of disciplinary boundaries, and thus call into question the very idea of the history of logic as a discipline. To this purpose I have solicited contributions from friends and colleagues, high- lighting new research directions in this exciting field.