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America's history begins with the Native Americans and the English settlers they encountered. Read our list of Native American leaders and heroes.

Science projects for kids: the moon give kids lunar adventures. Learn more about the phases of the moon, how the moon moves and how it looks.

The M-48 General George S. Patton Medium Tank was developed in anticipation of the Cold War and used in the Korean War. Explore the M-48 Patton tank.

The two lungs-one heart system evolved because that was all we needed to survive. Learn more about the evolution of the two lungs-one heart system.

Jupiter is the largest planet in the solar system. Big as this gas giant is though, next to the sun, it's still small.

Arnold Palmer transcended his sport and became a national folk hero. Learn how Arnold Palmer popularized golf in the United States.

Regular physical activity can improve heart health, strength, and endurance. Explore the many other mental and physical benefits of exercise.

There are hygiene products every man should have. Visit HowStuffWorks to find out which five hygiene products every man should have.

How has NASA helped improve our air and water? Visit HowStuffWorks to see how NASA has helped improve our air and water.

The Zeno acne treatment device is designed to fight acne with heat. Find out how the Zeno acne treatment device works at HowStuffWorks.

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