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Can you use toothpaste and mouthwash with fluoride?

health.howstuffworks.com/wellness/oral-care/products/toothpaste-and-mouthwash-with-fluoride.htm

Should you double up and use toothpaste and mouthwash with fluoride? Are there any dangers? Learn about using toothpaste and mouthwash with fluoride.

Who were the September 11 hijackers?

people.howstuffworks.com/september-11th-hijackers.htm

The events of Sept. 11th, 2001, left many wondering who could have been responsible for the attacks. Find out who were the September 11th hijackers.

Here's What Happens in the U.S. President's Daily Brief

people.howstuffworks.com/us-president-daily-brief.htm

President-elect Trump has skipped the President's Daily Brief several times. Learn more about the President's Daily Brief at HowStuffWorks Now.

How Has Interracial Marriage Been Treated Around the World?

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What's the state of interracial marriage in the United States and around the world? Learn more in this HowStuffWorks article.

Synchronous Fireflies Will Perform Spring Smoky Mountain Light Show

animals.howstuffworks.com/insects/synchronized-fireflies-perform-light-show-like-no-other.htm

Every year, synchronized fireflies light up in one, huge choreographed courtship display in a few spots around the world.

The U.S. Vice President Who Took the Oath of Office In Cuba

history.howstuffworks.com/historical-figures/us-vice-president-william-rufus-devane-king-cuba.htm

William Rufus DeVane King was the U.S.'s 13th vice president, and the only one to take the oath of office in another country. He and President James Buchanan were also the subjects of scandalous talk.

Why Do British Lawyers Still Wear Wigs?

people.howstuffworks.com/culture-traditions/national-traditions/why-british-lawyers-barristers-wear-wigs.htm

In the late 17th century, wearing wigs became a common practice in law. But why has it endured for so long?

5 U.S. Presidents and Their Beloved Cars

auto.howstuffworks.com/us-presidents-cars.htm

One super-cool perk to being POTUS? You get to be driven around in the heavily armored presidential limousine. One downside? You have to hand over your car keys - for life.

Hedgehogs: Adorable, But Do They Make Good Pets?

animals.howstuffworks.com/mammals/hedgehogs-not-pets.htm

Hedgehogs should not be kept as pets. HowStuffWorks looks at why these wild creatures don't belong in homes.

Why Gasoline Prices Vary From Station to Station

money.howstuffworks.com/why-gasoline-prices-vary-from-station-to-station.htm

Two gas stations might face each other on a street in Anytown, USA. Yet their gas prices might be different. Why is that?

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