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Walter Chrysler parted with Buick to start his own company. Learn about the origins of Chrysler, and how it became one of the famous "Big Three."

A computer virus can cause a lot of damage. Find out about worms, computer virus history, origins, and evolution, and how to protect your computer.

The age of old railroads saw the birth of the first railroad lines and mass transportation on rail. Read more about old railroads in America.

The railroad expansion of the middle and late 1800s changed America forever. Read more about the westward expansion of railroads.

Dangerous places for shark attacks dot the globe, but some spots rate higher than others. See where the most dangerous places for shark attacks are.

Animal domestication happened long ago. Find out which animals were domesticated first and why animals were domesticated at all.

Weather is the state of the atmosphere, rather than something that only affects your area. Read more about weather and the complex system behind it.

Marathons are 26.2 miles in length and have been known to cause death. Find out what marathons are all about and why anyone would run one.

Taking care of your ears is a small price to pay in return for how much they do for you. Learn how to clean, care for, and protect your ears.

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