Answers

2015-02-01T17:50:04+05:30
Lead is a relatively common element, easily found and mined in the earth and for this reason, it is impossible to say who first discovered lead because it was used in many different countries during the middle ages.
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2015-02-01T17:52:36+05:30
Lead was one of the earliest metals discovered by the human race and was in use by 3000 bc
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