Washington University in St. Louis announces the twenty-fifth year of Modeling Interdisciplinary Inquiry, a postdoctoral fellowship program endowed by the Andrew W. Mellon Foundation and designed to encourage interdisciplinary scholarship and teaching across the humanities and interpretive social sciences. We invite applications from recent PhDs, DPhils, or D.F.A.s (with degree in hand by June 30, 2026, and no earlier than June 30, 2023) who have not previously held a research-oriented postdoctoral fellowship. This fellowship program is housed in WashU’s Center for the Humanities. This year we are recruiting one fellow. We are interested in interdisciplinary scholars whose research employs historical methods and approaches as an integral part of their interdisciplinary research.