
9 “Unbreakable’ Codes Throughout History That Were Cracked (Explained)
For all of history, humans have enjoyed a good puzzle. Puzzles, codes, and ciphers have been found almost everywhere, from second-century Egypt to the 17th-century letters between King Charles I and Queen Henrietta-Maria. 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…