Navojo code was made to talk to other US Military so that Japanese could not understand. Philip Johnston was the people that came up with the ideal.
They were used as code breakers to aid the Americans during the war.
New York
The Navajo "Code Talkers" spoke in their native language and could not be understood by any enemy that were listening to their conversations .
The Ute Tribe,Mormon pioneers and Navojo Idians
Speak in Code was created on 2012-04-24.
The Code of the Harpers was created in 1993.
Code Revivial was created in 2004.
Secrets of the Code was created in 2006.
Code to Zero was created in 2000.
Norse Code was created in 2009.
The Tic Code was created in 1999.
QR code was created in 1994.