Multitouch is the touch-screen technology that allows you to put two fingers on an iPhone and pinch or pull to zoom in and out. During his Tuesday keynote, (Bill) Buxton credits it to the Count of Barcelona Wilfred the Hairy in 897.

During a battle, King Charles the Bald dipped his fingers into Wilfred’s war wounds and dragged his fingers down a golden shield, leaving blood streaks on the shield. Red bars across a yellow background became the flag of Catalan (sic), (…). Buxton called it the first case of multitouch.

(from here)

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