Mound Builders

A continent of earthworks, attributed to anyone but the people who built them.

The Mound Builder myth is a documented historiographic scandal: 19th-century America attributed the Ohio and Mississippi valley earthworks to a vanished non-Indigenous race (lost tribes, Vikings, Atlanteans) — a thesis with political utility during removal era — until Cyrus Thomas's Bureau of Ethnology survey (1894, 4,000+ sites) established Native American construction definitively. The node is the archive's documented case of an actual archaeological cover story: the conspiracy was the denial, and it was official, published, and motivated.