High Quality Content by WIKIPEDIA articles! The word plumber dates from the Roman Empire. In Roman times, some roofs were made of lead, or plumbum in Latin (hence the periodic table of the elements symbol of 'Pb' for lead). Lead roofs were waterproof, and the workers on such roofs were what are now called "plumbers". Roman baths later used lead for piping and for the main baths. Thus, a person with expertise in working with lead was known as a Plumbarius, eventually shortened to plumber.

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