1. The word "plumbing" comes from the Latin word "plumbum," which means "lead." This is because the first plumbing systems were made of lead pipes.

2. The ancient Romans were some of the first people to use plumbing systems. They used lead pipes to carry water from mountain springs to their cities, and they even had public baths and toilets.

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3. Indoor plumbing did not become common in homes until the 19th century. Before that, people had to use outhouses and public wells for their water needs.

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4. The first flushing toilet was invented by Sir John Harington in 1596, but it did not become popular until the 19th century.

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1. The average American household uses about 300 gallons of water per day. That's enough to fill a swimming pool every year!

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