American historian who works as a professor of history at Boston College, where she teaches courses on the American Civil War, the Reconstruction Era, the American West, and the Plains Indians. She previously taught history at MIT and the University of Massachusetts Amherst. Richardson has authored seven books on history and politics. In 2019, she started publishing Letters from an American, a nightly newsletter that chronicles current events in the larger context of American history. Richardson focuses on the health of American democracy. The newsletter gained over one million subscribers, making her (as of December 2020) the most successful individual author of a paid publication