How did volcanic eruptions impact the flow of the Nile River and affect social unrest in Ancient Egypt? Joseph Manning, the Simpson Professor of Classics and History at Yale University, will explain in a free, public lecture at 7 p.m. Oct. 30, in 100 D.P. Corbett Business Building. Manning observed that explosive volcanic eruptions resulted read more Yale professor to discuss volcanic eruptions, the Nile and social unrest in Ancient Egypt