Crosswords are one of the world's most popular word games, but how did they get invented? Tune in to learn how hard-working newspaper employee Arthur Wynne came up with the crossword puzzle.
Crosswords are one of the world's most popular word games, but how did they get invented? Tune in to learn how hard-working newspaper employee Arthur Wynne came up with the crossword puzzle.

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Learn about the man behind maybe the most useful invention in terms of mathematics the calculator http://t.co/7FTKCRGJ3X
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Not only important is where bioplastics came from, it's where are they going. Find out why in today's episode http://t.co/tIzm3Sek4g
