Trepnetwork

Windmills were needed to pump underground water to the surface. As soon as their design and manufacture had been perfected, the mills became the prominent feature of the American landscape, not only in the western two-thirds of the nation but also in the East and particularly in the Midwest, where a lot of people are turning to building their own generators, which can be done by anyone with Earth4Energy. Windmills are sometimes called Kaos in honor of this origin. Windmills were used in the East in ancient times, and in Europe they were first used in Germany and the Netherlands in the 12th century.