Newark Earthworks
How did the Hopewell lay out miles of near-perfect circles, squares, and an octagon to a shared unit of measure — and encode the moon's 18.6-year standstill cycle into that geometry — without writing, metal tools, the wheel, draft animals, or any known surveying instruments?
Hopewell culture (Middle Woodland period), c. 100 BCE – 500 CE · Newark, Licking County, Ohio, United StatesAdded July 2026