"On This Date in History" Calendar
1587: Mary, Queen of Scots, executed for treason.
![](https://cdn.firespring.com/images/e6ced36f-f879-4074-9a25-03e57c16a0c0.jpg)
8 February 1587: Mary, Queen of Scots, was executed for treason, as a result of a solution of a cryptosystem she was using in a conspiracy to assassinate Queen Elizabeth (Babington Plot). Pictured here is the cipher code used by Mary, Queen of Scots. Mary-cipher-code. Licensed under Public Domain via Wikipedia