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* '''0 : ''' The Chinese fly kites during battle to signal their troops

* '''700s :''' People living in Sri Lanka use wind to smelt (separate) metal from rock ore. They would dig large crescent-shaped furnaces near the top of steep mountainsides. In summer, monsoon winds blow up the mountain slopes and into a furnace to create a mini-tornado. Charcoal fires inside the furnace could reach 1200°C (2200°F). Archaeologists believe the furnaces enabled Sri Lankans to make iron and steel for weapons and farming tools.

* '''1300s :''' The Dutch invent the smock mill. The smock mill consists of a wooden tower with six or eight sides. The roof on top rotates to keep the sails in the wind.

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* '''1892 :''' Danish inventor Poul LaCour invents a Dutch-style windmill with large wooden sails that generates electricity. He discovers that fast-turning rotors with few blades generate more electricity than slow-turning rotors with many blades. By 1908, Denmark has 72 windmills providing low-cost electricity to farms and villages.

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