Land of Windmills

Fun facts about windmills:

• The first practical windmills were the vertical axle windmills invented in eastern Persia
• In Holland by 1923 only three thousand out of 10 thousand mills remained which further declined to just over the one thousand remaining today.
• The world's largest wind farm, the Horse Hollow Wind Energy Center in Texas, has 421 wind turbines that generate enough electricity to power 220,000 homes per year.