The Economist explains

Why the world has so many Guineas

From Canada to Oceania, Guineas are in abundant supply

By S.W.L.

GUINEA. Equatorial Guinea. Guinea-Bissau. Papua New Guinea. The Gulf of Guinea. Guinea, Virginia. Guinea, Nova Scotia. The world has more Guineas than a pirate's treasure chest. What explains the prevalence of the name?

Etymologists dispute the earliest origins of the word “Guinea”. Some trace it to a word in Tuareg, a Berber language, for black people: aginaw. Others think it originally referred to Djenné, a trading city in modern-day Mali. In the 15th century, Portuguese sailors used “Guiné” to describe an area near what is today Senegal, and by the 18th century, Europeans used “Guinea” to refer to much of the West African coastline. As colonisers carved up the continent, many European nations controlled their own Guinea. At independence, French Guinea became Guinea, Spanish Guinea became Equatorial Guinea, and Portuguese Guinea became Guinea-Bissau. The region was a major source of gold, hence the name “guinea” for the British gold coin.

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