Today in America, Evangelicals are estimated to make up a quarter of the population, or, at least, according to other estimates, 50 million people. The term ‘evangelical’ has a lot of connotations and stereotypes associated with it. For example, some consider an Evangelical to be “anyone who likes Billy Graham.” Like most stereotypes, some of the characterizations of Evangelicals are at least partly rooted in truth. But who are American Evangelicals really? In this essay, I will examine what it means to be an evangelical, the origins and history of evangelicalism, and modern evangelicalism before concluding.