The Watchers Teach the Nephilim the "Secrets" as Revealed in Ohio's Earthworks
In the Ohio Valley are earthworks that could have only been constructed with the knowledge of pi and square roots of numbers, such as this square circle in Circleville, Ohio. Other earthworks complexes as Newark, Ohio could have only been constructed with a knowledge of advanced trigonometry. In the Book of Enoch, it is written that these "secrets" were given to the ancient giant race by the Watchers.