Caitlin Fitz is an associate professor of history at Northwestern University and author of the prizewinning Our Sister Republics: The United States in an Age of American Revolutions (Norton/Liveright, 2016). She has also published in the Journal of American History, The Americas, The Wall Street Journal, The Los Angeles Times, and The Atlantic. She received her Ph.D. from Yale in 2010 and is currently working on a new book about Latin Americans’ influence on U.S. abolitionism and early civil rights activism, with fellowship support from the American Council of Learned Societies.