An engraving by W.T. Fry (based on a painting) of Mary Stuart, also known as Mary Queen of Scots, circa 1587. An international trio of codebreakers discovered and decrypted letters she wrote during her years in captivity in England. Hulton Archive/Getty Images
Hulton Archive/Getty Images
We can now learn more about one of the most controversial monarchs in European history, thanks to a trio of amateur cryptologists who unknowingly stumbled upon a treasure trove of long-lost letters by Mary, Queen of Scots and worked
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