From Neolithic tablets containing the oldest known system of writing, to a series of letters scrawled on the back of a dead man’s book, some of the most legendary undeciphered codes and texts remain a challenge for even the world’s best cryptographers, code breakers and linguists. Yet unravelling these mysterious puzzles remains as important as ever, since many of these enigmatic inscriptions could hold the keys to understanding civilizations that have long since faded into historic oblivion. Here we feature nine of the most fascinating undeciphered codes and inscriptions throughout history.
Hellbound and Down 