William Klingaman, PhD, will explore how the eruption of Indonesia’s Mount Tambora created calamitous weather conditions across the globe. The program is April 1, 2017, from 1-2 p.m. at the Historic Zoar Schoolhouse, 221 E. 4th Street, Zoar. Klingaman has author six books highlighting different periods in American history. He has taught at the University of Virginia and the University of Maryland. To learn more about the Zoar Village Speaker Series visit HistoricZoarVillage.com.