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It took nearly 500 years for researchers to crack Charles V’s secret code | Ars Technica
Holy Roman Emperor wrote of being targeted by Italian mercenary, among other topics.
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December 1, 2022 at 3:00:31 PM UTC ·
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https://arstechnica.com/science/2022/11/cracking-charles-vs-secret-code-reveals-suspected-assassination-attempt/
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