. . "300393220" . "Formerly used to refer to prehistoric North American people who inhabited the Ohio and Mississippi valleys and other areas, characterized by the erection of mounds. It is now understood that this was not an identifiable culture, but that the mounds were instead constructed by a variety of peoples for various purposes."@en . "Mound Builders"@en . "Mound Builder"@en . "2014-10-10T14:54:20"^^ . "mound builder"@en . . "2014-10-10T14:43:32"^^ . "mound-builder"@en .