For all of history, humans have enjoyed a good puzzle. Puzzles, codes, and ciphers have been found almost everywhere, from secondcentury Egypt to the 17thcentury letters between King Charles I and Queen HenriettaMaria. Still today, crossword puzzles, Rubik's cubes, and Sudoku all remain enjoyable ways to pass the time.

But not all puzzles are simply meant for fun and leisure. Ciphers and codes are, of course, also a great way to keep a secret, such as where one buried some hidden treasure. A wellcrafted code can also inform your own military of certain movements and plans, and without revealing that information to an enemy. Many of the strongest ciphers and codes endured for decades or even centuries before finally being cracked.

To learn more about unbreakable codes that were broken, go here:
https://www.ranker.com/list/whobroke...

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