Hans Rosling's 200 Countries, 200 Years, 4 Minutes

U.S. Religions Knowledge Survey

Atheists and agnostics, Jews and Mormons are among the highest-scoring groups on a new Pew Forum survey of religious knowledge, outperforming evangelical Protestants, mainline Protestants and Catholics on questions about the core teachings, history and leading figures of major world religions.

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via http://pewforum.org/