What was the first National Historic Site established in the United States?

Salem Maritime National Historic Site was the first National Historic Site established in the United States, in 1938.

The site preserves historic buildings, wharves, maritime objects, and the waterfront of Salem Harbor in Massachusetts. It interprets Salem’s role in colonial commerce, privateering during the American Revolution, and international trade after independence.

Important resources include the Salem Custom House, Derby House, Derby Wharf, and the replica ship Friendship of Salem. The area’s protected history demonstrates that the National Park Service mission extends beyond scenery and wilderness.

In 2025, the site was redesignated Salem Maritime National Historical Park. Older references and many historical sources therefore use the original National Historic Site name, while newer references may use the updated designation.