This is a simple 1 page document that gives all the major eras of American History. One of the 1st things I have my AP US History students learn is this outline, including the dates. When they are asked to write essays it is extremely helpful for them to know when certain time periods are in relation to others. It gives them confidence when they begin organizing and formulating their essays. Writing good essays is vitally important for the AP exam each year and this is a prerequisite for my students. Hope it helps your students too!