Koumba Ialá

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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?

Drinking water is poured into a glass.

Water Fluoridation: Just the Facts

Aspirin pills.

7 Drugs that Changed the World

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

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?

Ethel Rosenberg arrested in August 1950. Photograph dated Aug. 8, 1950. American civilians executed for espionage. Spies, communists, Julius Rosenberg

Spies Like Us: 10 Famous Names in the Espionage Game

Happy, smiling, flying pig

7 Everyday English Idioms and Where They Come From

Koumba Ialá

president of Guinea-Bissau

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history of Guinea-Bissau

In Guinea-Bissau: Independence of Guinea-Bissau
Kumba Ialá.
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