The History Room Committee of the Hudson Area Library presents Dr. Thomas Mounkhall for a two-part multimedia presentation on the Hudson River during two significant time periods. In this presentation, Mounkhall will discuss Western European voyages of exploration through the influence of the Erie Canal on New York City from 1500 to 1830. A question and answer session will follow. Light refreshments will be served. Part of the Local History Speaker Series. Information at hudsonarealibrary.org or (518) 828-1792 x101.