Although Henry Wadsworth Longfellow never visited Minnesota, his poem "The Song of Hiawatha" is set there and is based on Ojibwe and Ottawa legends collected and published by Henry Rowe Schoolcraft, on Mary Henderson Eastman's 1849 book "Dahcotah, or Life and Legends of the Sioux Around Fort Snelling", and on an 1855 photograph of Minnehaha Falls by Alexander Hessler. The epic tells the story of Hiawatha, a warrior from the Lake Superior Ojibwe, and his star-crossed love affair with Minnehaha, a Dakota woman. Longfellow's hero is based heavily upon the Ojibwe legends surrounding the trickster spirit Nanabozho and also contains Longfellow's own innovations.