The Kentucky Historical Society is releasing a smartphone app so users can find out more about the Commonwealth's historic sites. The Explore Kentucky History app connects historical markers, related items in the Historical Society's collections and user-submitted images and stories to points of interest on a map. The information is then grouped together into tours, with a Civil War-themed tour the first available. The KHS says it hopes Kentuckians and local history groups will participate, submitting images and stories. The app is available for free.