Forest Diplomacy draws students into the colonial frontier, where Pennsylvania settlers and the Delaware Indians (or Len'pé) are engaged in a vicious and destructive war. Using sources-including previous treaties, firsthand accounts of the war, controversies over Quaker pacifism, and various Iroquois and Len'pé cultural texts-students engage in a Treaty Council to bring peace back to the frontier. Reacting to the Past is an award-winning series of immersive role-playing games that actively engage students in their own learning. Students assume the roles of historical characters to practice critical thinking, primary source analysis, and both written and spoken argument. Reacting games are flexible enough to be used across the curriculum, from first-year general education classes and discussion sections of lecture classes to capstone experiences and honors programs.