Carnegie-Mellon University history professor Dr. Edda Fields-Black shows how the Union Army, led by Harriet Tubman, freed 756 enslaved rice plantation workers in South Carolina in June, 1863 – as told in her 2024 book, “Combee: Harriet Tubman, the Combahee River Raid, and Black Freedom During the Civil War,” winner of the 2025 Pulitzer Prize for History. Parish Hall, Calvary Episcopal Church, 315 Shady Ave. 15206