Researchers have cracked the code used to write a collection of "lost" letters once owned by Mary, Queen of Scots.
Penned between 1578 and 1584 with a "sophisticated cipher system" that involved a mix of letters and symbols, the letters were written to and from the former Queen of Scotland (also known as Mary Stuart) while she was imprisoned by her cousin, Elizabeth I of England, according to a statement(opens in new tab).
A team of international codebreakers "stumbled upon" the mysterious texts while searching the archives at the Bibliothèque nationale de France, the country's national library in Paris, according to the statement.
