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  • .??? Bronze is an alloy of copper and other metals, and when copper-smelting cultures learned to alloy other metals with copper, notably tin, then that culture graduated from its Copper Age to its Bronze Age.??? Bronze is quite sturdy when compared to copper, and weapons and tools made from bronze were superior.??? The Bronze Age began in Sumer by about 3300 BCE, and bronze-tipped plows were not l
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