January 28- February 3, 2017

January 28- February 3, 2017

The Spanish intelligence agency just cracked the 500-year-old code of King Ferdinand of Aragon, whose letters to his chief military commander were written in a highly complex cypher. The code contained 88 different symbols and 237 combined letters, and it took the intelligence agency almost half a year to decipher four of them.
 

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