Founded in 1824 and located in Philadelphia, the Historical Society of Pennsylvania contains one of the most important archives of material relating the history of Pennsylvania in the United States. Visitors to the site will want to examine the newsletter published by the Society, which relates details about ongoing events, lectures, and exhibitions, along with offering details about new publications related to the state's history. Researchers will want to examine the Society's online catalog, which is fully searchable. Equally valuable are a series of drop-down menus that provide information on utilizing the Society's collections, including research guides to architectural history, Civil War manuscripts, family history, and Philadelphia neighborhood history. Also available online are a number of online collection finding aids, including "Places in Time: Historical Documentation of Philadelphia," which provides numerous scanned images of the city over its 300-year history.