Humans have been manipulating steel since we discovered copper thousands of years ago. The oldest instance of a fabricated steel product that contemporary humans have is Portable Washer a pendant, present in what is now northern Iraq, courting from around 8700 BC. Nearly as old are the hand held copper hammers present in present day Michigan and the encompassing Great Lakes area.
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ReplyDeleteAga kocham Twoje prace !!!
ReplyDeleteHumans have been manipulating steel since we discovered copper thousands of years ago. The oldest instance of a fabricated steel product that contemporary humans have is Portable Washer a pendant, present in what is now northern Iraq, courting from around 8700 BC. Nearly as old are the hand held copper hammers present in present day Michigan and the encompassing Great Lakes area.
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