Nashtifan’s Windmill Made of natural clay, straw, and wood, the windmills have been milling grain for flour for an estimated 1,000 years. The vertical axis design is probably similar to the windmills that were invented by the Persians around 500 C.E.—a design that slowly spread through the world and which was later adapted by the Dutch and others .
Sources: https://news.nationalgeographic.com/2017/01/nashtifan-iran-windmills/ http://www.irna.ir/en/PhotoNews/3662763
