The Delaware Historical Society began in 1864 as an effort to preserve documents from the Civil War. Since then, it has expanded into a state-wide historical institution with several venues and a major museum in Wilmington and the historic Read House & Gardens in New Castle.
The society participates in joint marketing with the Delaware Tourism Office, the Greater Wilmington Convention & Visitors Bureau, and the Brandywine Museums & Gardens Alliance.
More information on the Wikipedia page 
The Wikipedia page on Delaware is .