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It’s December 24th. Today, we look at a number of puzzle-related stories from the WWII era. This is when the New York Times finally got in the crossword game, codebreakers used puzzles to recruit great minds, and more.

Jody, NIki, and Kellie are joined by author and podcast host A.J. Jacobs to discuss what that first crossword looked like, why it was such a hit, and how puzzling can help explain the world.

A.J. is the author of “The Puzzler” and also host of the new daily puzzle podcast of the same name — which is produced by our own Jody Avirgan and Brittani Brown! Learn more at thepuzzler.com

Here’s our holiday book gift guide!

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Get in touch if you have any ideas for future topics, or just want to say hello. Our website is thisdaypod.com Follow us on social @thisdaypod

Our team: Jacob Feldman, Researcher/Producer; Brittani Brown, Producer; Khawla Nakua, Transcripts; music by Teen Daze and Blue Dot Sessions; Audrey Mardavich is our Executive Producer at Radiotopia