“ I only regret that I have but only one life to lose for my country”-Nathan Hale. Spycraft, a complicated system of hidden networks, interpersonal relationships, scientific knowledge, personal cunning, guile and risk; taking one of the American RevolutionsRevolution's most important “weapons.”
To be a spy youone had to be very discreet , so they made a way to send messages in the public, but they are still coded in a way forthat only a way the receiver cancould read. There were seven different ways of coding and the most popular was ciphers and coded letters. They were used to ensure if or when caught, the letter could not be understood. In the cipher, letterletters represented and replaced other letters to hide the true message. This beingwas only known to be practiced by Culper Ring Spies (American spies). Another technique was invisible ink which was well used by both British and American spies. To make theThe mixture it consisted of water and sulfate . “The secret writing was placed between the lines of an innocent letter and could be discerned by treating the letter with heat or a chemical substance. The recipient placed the paper over the flame of a candle or treated it with a chemical reagent, such as sodium carbonate, which would reveal the letter’s hidden contents.”