Derek Caelin is writing a book on Nostr: I've been reading people's mail. They are the letters of Abigail and John Adams from ...

I've been reading people's mail.

They are the letters of Abigail and John Adams from 1775, so historians tell me this OK?

John is *extremely* cautious in writing. Lots hints and promises to say more in person. This was wise, because a lot of the letters of the Continental Congress were intercepted by the British at the time.

This all makes me wonder what the state of #cryptography was in those days, and whether the Adams could have adopted any good encryption measures.

#history