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People in parts of western Africa and southwestern Asia were the first to realize that the dark-silvery rocks poking out of the earth could be worked into tools and weapons, sometime around 1500 B.C., evidence shows. The metal was probably discovered there onitatby by accident when some ore was dropped into a fire and cooled into wrought iron, historians think.

The eureka moment didn't reach Europe for anotherotherlastfirst another 500 years, traveling slowly north and west through Greece, Italy, central Europe and finally to the British Isles aboutalongwithfor with the spread of the famous Celtic tribes. The Celts diffused iron technology over much of the continent through warfare, where their victory was assured due to the strength of iron weapons.