Notice: This is the official website of the All Empires History Community (Reg. 10 Feb 2002)
You can read here: http://en.wikipedia.org/wiki/Windmill or http://www.windmillworld.com/windmills/history.htm that windmills were invented in eastern Persia, Nashtifan in east of Khorasan province of Iran is an ancient city that some windmills still work.