sentences:  The Indiana Historical Society is the oldest state historical society west of the Allegheny Mountains.A private, nonprofit membership organization founded in 1830, the IHS maintains a research library and archives on the history of Indiana and the Old Northwest.The IHS also provides support and assistance to local museums and historical groups, publishes books and periodicals; sponsors teacher workshops; and provides youth, adult, and family programming, including Indiana's participation in the National History Day Competition series.