Powell Liberty Historical Society

The Newark Earthworks are the largest set of geometric enclosures in the world and include two of the eight sites that comprise the Hopewell Ceremonial Earthworks UNESCO World Heritage site. These monumental earthworks were created by the ancient Indigenous Hopewell culture, which was centered in southern Ohio between about A.D. 1 and 400. These geometric earthworks covered more than four square miles were constructed using more than seven million cubic feet of earth. Although built with simple tools, such as pointed sticks and baskets, the architecture incorporates a deep knowledge of geometry. The Newark Earthworks are a remarkable testament to the genius of the Indigenous designer and the dedication of the builders. Brad described the origins of the Newark site and its relationship to other sites in Ohio. He described the evolution of the site over time and the efforts to save and preserve the earthworks. He also discussed the significance and implications of the recent World Heritage Designation.