The American Independence Museum is a historic house museum located in Exeter, New Hampshire. Its 1-acre (0.40 ha) campus includes two buildings: the Ladd-Gilman House, a registered National Historic Landmark built in 1721 by Nathaniel Ladd, and the Folsom Tavern, listed on the New Hampshire State Register of Historic Places and built in 1775 by Colonel Samuel Folsom. The museum was opened in 1991 after a rare copy of the Declaration of Independence known as a Dunlap Broadside was found in the Ladd-Gilman house, 200 years after its arrival in Exeter. It is the centerpiece of the museum’s collection. The museum’s mission is “Connecting America’s Revolutionary past with the present.”