National Hispanic American Heritage MonthEach year, Americans observe National Hispanic Heritage Month from September 15 to October 15, by celebrating the histories, cultures and contributions of American citizens whose ancestors came from Spain, Mexico, the Caribbean and Central and South America. This website is a collaborative project of the Library of Congress and the National Endowment for the Humanities, National Gallery of Art, National Park Service, Smithsonian Institution, United States Holocaust Memorial Museum and U.S. National Archives and Records Administration.