Since the days of the Ancient Greeks, history has been perceived as the academic study of the past. Unfortunately, it has generally been taught as a litany of rigid, boring facts intended to be accepted rather than questioned. This has been reinforced for decades by weighty textbooks that overwhelm the reader with mind-numbing details presented in a chronological sequence. The end result is that students see little relevance of what they learn in history class to the real world, and many simply struggle to stay awake. Compared to other subjects taught at the secondary level, history is...