|Elizabeth Stuart, Queen of Bohemia, sent letters filled with cryptography, ciphers, codes and invisible ink|
Love this article from Atlas Obscura on 17th Century Female Spies and how they smuggled information through Eggs and artichokes.
In the 17th century, espionage was more diverse than you might think. Not only did female spies exist, they employed some of the most fascinating techniques in their information gathering.
Forthcoming research into female spies that operated in Europe and England at the time shows that they utilized an ingenious arsenal of tools, such as eggs and artichokes, to smuggle secrets
Read the rest of the article here.