Windmill - Wikipedia
Jul 08, 2016· Who invented Windmill ? ommics 21:38 No comments: Invented By - Persians. Year - 650 BC. A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Centuries ago, windmills usually were used to mill grain, pump water, or both. Thus they often were gristmills, windpumps, or both.