Westward Spread of Wind-Powered Mills

Timeline

1. c. 700–950Sistan · SistanDevices using vertical-axis windmills for water lifting and irrigation appeared in Persia and the Sistan region, harnessing steady winds to drive blades and providing power for arid oasis agriculture; the technology is recorded in the Arabic technical literature tradition.
2. 1001–1010Islamic world · West AsiaIn the early 11th century, wind-powered mills and wind-driven water lifts had become widespread in Mesopotamia, Syria, and the Maghreb region of North Africa, used for grain grinding and irrigation; the technology continued to spread westward through networks of merchants and craftsmen.
3. c. 1100–1300Western Europe and Iberia · Western EuropeThrough the Iberian and Mediterranean contact zones, windmill technology spread into Europe, where Europeans developed horizontal-axis tower windmills for milling and drainage, becoming an important power source for medieval agriculture and coastal polder development.