National Historic Landmark was created in 1960.
South African Indian Congress was created in 1924.
Steamtown National Historic Site was created in 1995.
National Trust for Historic Preservation was created in 1949.
National Register of Historic Places was created in 1966.
Saint-Gaudens National Historic Site was created in 1977.
Christiansted National Historic Site was created on 1952-03-04.
Nez Perce National Historic Trail was created in 1986.
Fort Larned National Historic Site was created in 1964.
John Muir National Historic Site was created in 1962.
Ala Kahakai National Historic Trail was created in 2000.
Hampton National Historic Site was created on 1948-06-22.