“The Secret Code Breakers of World War II”
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Title: Code Girls
Author: Liza Mundy
Category: World History, Memoirs & Life Stories
Over 10,000 women broke enemy codes in World War Two, and then history forgot them. That's the story Liza Mundy rescues in Code Girls, and Sam and Sophie are digging into it.
They trace how recruiters went looking for the smartest young women at elite colleges, how those women worked in windowless rooms at Arlington Hall, and how they cracked codes like Purple and JN-25. Sam and Sophie walk through the key breakthroughs — Genevieve Grotjan's moment with the Japanese cipher, the Battle of Midway, and the heartbreaking quiet trauma that followed.
This episode is for anyone who loves untold history, or who's ever wondered where modern computing really came from. The takeaway: heroism isn't always on the front line — sometimes it's a woman staring at numbers until a pattern appears.
Code Girls by Liza Mundy. If you want the full written summary, the whole library is on 7minutebooks.com/app — over 6,000 fiction and nonfiction titles you can read or listen to in any language, with infographics on many of them. It's $2.99 a month, $9.99 a year, or $19.99 lifetime.
Chapters
00:00The Hidden History of WWII's Women Code Breakers01:16The Price of Total Secrecy02:12JN-25: The Unbreakable Japanese Code02:58The Costs They Silently Paid03:59From Punch Cards to Modern Computers04:50Heroism in a Windowless Room
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