This article deals with the concept of andragogy and the understanding of the same from a historical and professional perspective. It also includes a clarification of the difference between European and North American andragogy. Andragogy concerns adult education and learning in some way or another, but, beyond this, the concept is ambiguous. Many perceive it as being synonymous with Knowles's andragogy from the 1970s, but this perspective is divorced from a sense of history. European andragogy arose long before Knowles's andragogy did and is also more ambiguous. This article accounts for various understandings of andragogy, from the first known user of the concept to date.