Awesome Interactive Map Shows Which Countries Have the Most Languages

by Albie Hartshill May 7, 2015

HOW LINGUISTICALLY DIVERSE IS YOUR COUNTRY? The Washington Post created this excellent visualization of what is known as the Greenberg diversity index, which determines a country’s linguistic diversity. The way it works is this: what is the probability that two randomly selected people from a country will speak the same native language? If every person in the country speaks a different language, the number assigned will be 100. If everyone speaks the same language, the number is 0.

Papua New Guinea comes shockingly close to 100: they manage a 98.8. The US ranks relatively low on the index, with a ranking of about 33. See how we compare to the rest of the world.

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