Hundreds of years ago, people developed ingenious methods to secure their letters from prying eyes – and they did it with only paper, adhesive and folds. Late at night on 8 February 1587, an ...
Centuries before encrypted texts and secure video conferencing, people relied on physical engineering to keep their written messages sturdy, sealed, and secure against eavesdroppers. In a new book, ...
Mary, Queen of Scots used a “spiral locking” technique to seal the last letter she wrote before her execution, indicating that she wanted the contents to remain secret, according to research published ...
In a steady, stately script, an anonymous Dutch writer living around 1700 wrote a letter: “I never thought you’d be such a miserable dog,” it went. “If you’ve got something to say, just say it to my ...
Recent research highlights the use of letterlocking techniques by Queen Elizabeth, Catherine de’ Medici and Mary Queen of Scots. By William J. Broad To safeguard the most important royal ...
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