 In North America, the rise of informal logic as it is now understood is tied to educational trends rooted in the 1960s — a time of social upheaval and protest (most notably, against the War in Vietnam) which produced calls for an education relevant to the issues of the day. This fueled an interest in the logic of everyday argument and the teaching of introductory logic, which was at the time taught with textbooks like Copi’s popular Introduction to Logic (1953). 