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Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.

7 Deadliest Weapons in History

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Dancers at a Cinco de Mayo festival at the Mission District, San Francisco, California. (Photo dated 2019.) holidays

Is Cinco de Mayo Mexico's Independence Day?

Drinking water is poured into a glass.

Water Fluoridation: Just the Facts

Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

Why Do Some Cicadas Appear Only Every 17 Years?

Aspirin pills.

7 Drugs that Changed the World

Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.

What Is the Emoluments Clause?

Cumberland

Rhode Island, United States

Learn about this topic in these articles:

Blackstone River

In Blackstone River
…settler in what is now Cumberland, Rhode Island.
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