Under the orders of General George Washington, Major Benjamin Tallmadge organized the Culper Spy Ring in 1778 to gather information on British troop movements, fortifications, and military plans in the New York area.
Informants used fake names and a numerical code book consisting of seven hundred and sixty-three numbers representing words, names, and places to communicate their information. Developed by Tallamadge, the Culper Code Book was essential in protecting the vital communications and identities of this important intelligence gathering group.
*Below is the link to the Culpher Code Book and so much more! You can read how “Agent 711” utilized invisible ink to send messages back and forth; I’ve added an image of the recipe for Washingtons ink which, until recently (relatively) was Classified.
I’ll never look at our nation’s first President and founder the same again. That little rascal!