Windmill

According to the Encyclopedia Britannica, windmills were first mentioned by a Persian millwright in 644 CE and windmills in Seistan, Iran, in 915 CE.

A windmill is a machine that uses sails that are mounted on a spinning shaft to harness the power of the wind. The sails are mounted at an angle or given a minor twist so that the wind's force is split into two components, one of which imparts rotation in the plane of the sails. From the 12th century to the early 19th century, windmills were used more and more often throughout Europe, but after that, their use began to fall as a result of the development of steam power, the internal combustion engine, and the expansion of electric power during World War 1.

The Nashtifan region in northeastern Iran is home to some of the country's oldest windmills, and Sistan, which is located there to the south, has long been a millwright's paradise.