Roman Emperor's Secret Code Finally Cracked After 5 Centuries - Mysterious Note Reveals Significant 'Concerns'

French scientists have finally decoded a cryptic letter written by one of the most powerful rulers of Renaissance Europe.
France’s Stanislas Library announced that a three-page coded letter written by Holy Roman Emperor Charles V was finally decoded last month, according to Insider.
French cryptographer Cecile Pierrot learned of the document’s existence in the Stanislas Library’s basement during a dinner party in the city of Nancy three years ago, according to the BBC.
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