Mark Schmeller is a historian of early United States political thought and culture. Before joining the faculty at Syracuse, he taught at Binghamton University, Rice University, and Northeastern Illinois University. He has received fellowships from the Mellon Foundation, the Library Company of Philadelphia, and the Charles Warren Center for Studies in American History at Harvard University. He is the author, most recently, of Invisible Sovereign: Imagining Public Opinion from the Revolution to Reconstruction, which was published by Johns Hopkins University Press in 2016. Schmeller is currently at work on two projects: one a brief history of the 1826 kidnapping of William Morgan, a Freemason who had threatened to reveal the secrets of his order; the other a larger history of the role and meaning of oaths in American legal and political culture from the colonial era to the present.